DOI: 10.15560/22.5.907

Authors: Gerardo Núñez-Guzmán, Ricardo Calle, M. Alejandra Camacho

Abstract: We report the first voucher-based record of Cyttarops alecto from the Chocó region of Ecuador. The specimen, an adult male captured at Reserva Tesoro Escondido, Esmeraldas Province, represents the second locality west of the Andes in South America and the first voucher-based record for the Ecuadorian Chocó. Identification was supported by external and cranial morphology and by COI and Cytb mitochondrial DNA. This record extends the distribution of C. alecto into a major Neotropical biodiversity hotspot and highlights the need for continued surveys in threatened Chocó forests.

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DOI: 10.15560/22.5.788

Authors: Johnny Emanuel F. A. Da Costa, Karolaine P. Supi, Clara Ananda Guimarães, Carlos Eduardo V. Grelle, Roberto Leonan M. Novaes

Abstract: Lampronycteris brachyotis (Dobson, 1879) is widely distributed throughout Neotropics. In Brazil, this bat species has been recorded in 26 localities in the Amazon, Cerrado, and Atlantic Forest ecoregions across 12 states. Here, we report the first occurrence in the state of Rio de Janeiro based on a capture of one individual in a secondary dense ombrophilous forest. This record fills a distributional gap of L. brachyotis within the Atlantic Forest, where previously records were from Paraíba, Bahia, Espírito Santo, São Paulo, and Paraná states.

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DOI: 10.15560/22.3.589

Authors: Md. Kamrul Hasan, Anik Saha, Ashis Kumar Datta, Sharmin Akhtar, Sajeda Begum

Abstract: Myotis peytoni Wroughton & Ryley, 1913, a species of bat endemic to the forests of South India, is categorized as Data Deficient. Here, we report a new country record from Bangladesh, approximately 2,000 km north of this species’ previously known distribution. A detailed study of morphology, including cranial and dental characters, as well as a molecular analysis using the cytochrome c oxidase subunit I gene, confirm the species as M. peytoni. The phylogenetic analysis shows that the individual from Bangladesh is closest to the south Indian population. We recommend further study of the biogeography and population dynamics of the Bangladesh population.

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DOI: 10.15560/22.3.519

Authors: Lina A. Koyama, Kouki Yamamoto

Abstract: The Japanese Red Fox, Vulpes vulpes japonica Gray, 1868, is highly adaptable, yet its urban ecology in Japan remains poorly documented. We conducted a camera-trap survey in an urban green space in Kyoto between July 2023 and November 2025 and recorded 14 detections, all occurring from October to January. This seasonal pattern suggests repeated use of the site during the breeding period, likely as part of a larger annual home range. Our findings underscore the need for broader urban wildlife research across Japanese cities that accounts for structural and historical traits.

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DOI: 10.15560/22.2.369

Authors: Oziel Cruz-Oropeza, Horacio Bárcenas, Heliot Zarza, Gerardo Ceballos

Abstract: We documented the diversity of medium-sized and large terrestrial mammals at the Tres Mesas wind farm in Tamaulipas, Mexico. Monitoring was conducted over three years (July 2019–October 2022) using camera traps. We estimated diversity using Hill numbers (q = 0, 1, 2) and calculated the relative abundance index (RAI) to compare species abundance among sampling periods. We recorded 17 species of mammals, including three species of protected felids. Species richness (q0) did not differ significantly among sampling periods; however, diversity at orders q1 and q2 increased significantly during the third sampling period. Most species showed an increase in abundance, particularly herbivores. Although the Tres Mesas wind farm represents a partially modified landscape, it supports a mammal diversity comparable to that of nearby protected natural areas in the region. These results highlight the ecological importance of this site and its potential contribution to wildlife conservation in northeastern Mexico.

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DOI: 10.15560/22.2.303

Authors: Andrea Valeri, Corrado Modica, Bernd Ohlendorf , Enrico Lunghi

Abstract: Rhinolophus euryale Blasius, 1853 is a cave-dwelling species, whose occurrence in Abruzzo, Italy, has long remained uncertain. During monitoring activities carried out in a karstic cave located in Stiffe village (L’Aquila), we captured 34 bats, including 14 R. euryale. This record confirms this species’ presence in Abruzzo and highlights the importance of the site as a hibernaculum. Given the populations’ decline reported across the species’ range, these findings are crucial for conservation and underline the need for systematic surveys to monitor strictly protected bat species.

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DOI: 10.15560/22.2.291

Authors: Samundra Ambuhang Subba, Dipendra Pokharel, Sheren Shrestha, Hari Bhadra Acharya, Ghana Shyam Gurung, Shashank Poudel, Kanchan Thapa

Abstract: All three species of woolly flying squirrels, genus Eupetaurus, are among the world’s rarest and least studied mammals. Here, we report the first confirmed record of the Tibetan Woolly Flying Squirrel, Eupetaurus tibetensis Jackson et al., 2021, from Kangchenjunga Conservation Area in northeastern Nepal. Captured by camera traps during a Snow Leopard survey, this record fills a significant biogeographic gap in the known distribution of the genus Eupetaurus, suggesting a continuous Himalayan distribution. This finding underscores the need for systematic research to understand the species’ distributional limits and conservation status.

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DOI: 10.15560/22.2.267

Authors: Janeira L. Rosero-Taramuel, Juan J. Arboleda-Osorio, Alison F. Guerrero-Diaz, Faber Diomar Jimenez Anacona, Karen Matabanchoy-C, Belisario Cepeda-Quilindo, Diego Fernando Chamorro, Gustavo Adolfo Pisso-Flórez, Héctor E. Ramírez-Chaves

Abstract: The Andean Fox, Lycalopex culpaeus (Molina, 1782), is one of the largest endemic canids in South America. The northernmost part of its distribution lies in the Andes of southwestern Colombia, where it is known only from few localities. We present noteworthy records in southwestern Colombia, including one individual from the south-ern buffer area of Puracé National Park, a second individual found as roadkill on the Pan-American Highway, both in the Department of Cauca, and two additional records from the Colombian Massif. The Puracé record extents the distribution of this species by 74 km northward from previously verified localities.

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DOI: 10.15560/22.2.247

Authors: Juan Felipe Charre-Medellín, Esmar O. Guzmán-Díaz, Sofía Zorrilla-Azcué, Laura A. Chang-Martínez, Hernando Rodríguez-Correa

Abstract: We report Glaucomys volans (Linnaeus, 1758) for central Mexico, representing the first confirmed evidence of its presence in the state of Guanajuato. Using camera traps installed in a pine–oak forest, within the core zone of the Sierra Gorda Biosphere Reserve Guanajuato, we documented 19 nocturnal detections of the species at a tree cavity also used by other vertebrates. This record extends the known range of the species by 52 km northwest of the nearest locality and highlights the importance of protected natural areas in documenting poorly known mammal species.

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DOI: 10.15560/22.2.217

Authors: Juan Felipe Charre-Medellín, Hernando Rodríguez-Correa, Laura A. Chang-Martínez, Esmar O. Guzmán-Díaz, Raúl Alvarez-Jara, Lino Landaverde-Hernández

Abstract: We report the first records of Panthera onca (Linnaeus, 1758) in Guanajuato, Mexico. These were observa-tions made within the Sierra Gorda of Guanajuato Biosphere Reserve from August 2024 to May 2025. Seventy-five camera traps documented 11 independent events of two individuals (one female, one male) in oak and tropical dry forests at elevations of 711–1,617 m. These findings fill a critical gap in validating Jaguar corridors across central and eastern Mexico and emphasize the role of protected and community-managed areas. We recommend expand-ing monitoring, strengthening local conservation agreements, and conducting genetic studies to assess regional connectivity.

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DOI: 10.15560/22.1.168

Authors: Héctor E. Ramírez-Chaves, Manuela Jaramillo Castrillón, Juan J. Arboleda-Osorio, Juan P. López-Ordóñez, Mario H. Chavez-Acosta, Juan P. Cerrato-Córdoba, Cristian A. Cruz-Rodríguez, Andrés F. Suárez-Castro

Abstract: Atelocynus microtis (Sclater, 1883) is a rare canid whose distribution spans the entire Amazon Basin. It is the least known canid in Colombia, where sightings have been reported from six localities. In contrast, Cerdocyon thous (Linnaeus, 1766) is the most common canid species in Colombia, with its distribution linked to open areas, human-modified landscapes, and agroecosystems. Here, we report new records of A. microtis and C. thous in the Colombian Amazon, documenting a range extension of C. thous and suggesting that forest loss driven by human activity may promote contact between these two otherwise allopatric canids.

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DOI: 10.15560/22.1.150

Authors: Ximena Velez-Liendo, Paul Bamford, Carmen Julia Quiroga-Pacheco

Abstract: We report new distribution records for 18 mammal species in Tarija, Bolivia. Tremarctos ornatus (Cuvier, 1825), Puma concolor (Linnaeus, 1771), Cerdocyon thous (Linnaeus, 1766), Lycalopex gymnocercus (Fischer, 1814), Leopardus wiedii (Schinz, 1821), Herpailurus yagouaroundi (Geoffroy Saint-Hilaire, 1803), Nasua nasua (Linnaeus, 1766), Procyon cancrivorus (Cuvier, 1798), Mazama americana (Erxleben, 1777), Mazama gouazoubira (Fischer, 1814), Pecari tajacu (Linnaeus, 1758), Euphractus sexcinctus (Linnaeus, 1758), Didelphis albiventris (Wagner, 1842), Sylvilagus brasiliensis (Linnaeus, 1758), Tamandua tetradactyla (Linnaeus, 1758), Alouatta caraya (Humboldt, 1812), Dasyprocta puncata (Gray, 1842), and Abrocoma boliviensis (Glanz & Anderson, 1990).

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DOI: 10.15560/22.1.22

Authors: Sergio Solari, Sebastián Cifuentes-Acevedo, Laura M. Aramendiz-Macías

Abstract: Oryzomys couesi (Alston, 1877) has a restricted geographic distribution in South America. Until now, it was only known from Montería, Córdoba, in the Caribbean region of Colombia. Here, we add three geographic records; a recent individual was recorded in Urabá, Antioquia, and during the identification process, we found six specimens from two localities around Isla de Salamanca National Park, Magdalena, whose identity have remained unpublished so far. These specimens represent additional geographic records of O. couesi in Colombia and South America. A cytochrome b sequence from the Urabá specimen increases the taxonomic and biogeographic relevance of these records.

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DOI: 10.15560/21.6.1298

Authors: Nelson Guevara, Alexandra Achille, Mallory Salgado, Yosari Caceres, Bryan Vargas, Emily Martínez, Adrian Cisneros

Abstract: We confirm the presence of Dermanura rava Miller, 1902 in Panama based on two specimens collected in Chagres National Park, whose identification was based mainly on the ventral morphology of the skull, particularly the absence of posterior nares in front of the mesopterygoid fossa. This finding fills an important gap in knowledge about the distribution of the species in Central America and extends its known range approximately 308 km north-ward to the Panama Canal region.

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DOI: 10.15560/21.6.1262

Authors: Manfredo A. Turcios-Casco, José G. Martínez-Fonseca, Bruce Miller

Abstract: Acoustic methods have revolutionized the study of bats in the Neotropics, but they have not been widely used in Central America. This is partly due to a lack of funding for recording equipment, training limitations, and the absence of open-source repositories of verified voucher reference files. Since 2020, passive acoustic surveys have been conducted throughout Honduras, providing new insights into ecological, relative abundance, and distribution of several species. Based on two recent exploratory passive acoustic surveys in southeastern Honduras, Cormura brevirostris (Wagner, 1843), Emballonuridae, is reported for the first time in this country, extending its known range approximately 160 km north of the previous record in Nicaragua.

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DOI: 10.15560/21.6.1143

Authors: Mariane de Almeida Gentil, Gabriel Selbach Hofmann, Igor Pfeifer Coelho, José Luís Passos Cordeiro, Marcione Brito de Oliveira

Abstract: We report the first record of Histiotus diaphanopterus Feijó, Rocha & Althoff, 2015 in the state of Tocantins, Brazil and the third record of the species in the Cerrado biome, reinforcing its association with seasonally dry environments of the South American diagonal of open formations. Morphological traits confirm specimen identity, with transparent wings as the most distinctive diagnostic character. Our findings highlight the species’ ecological specificity and exposure to anthropogenic threats, including habitat loss and climate change, underscoring the need for further studies and integrated conservation strategies.

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DOI: 10.15560/21.5.1059

Authors: Faisal Ali Anwarali Khan, Muhd Amsyari Morni, Muhammad Amin Iman Azmi, Nur Iylia Maisarah Baharom, Muhammad Danish Haqeem Mohd Khairi, Asfa Hanis Mohamad Azmi, Victor Lee Sien, Julius William-Dee, Emy Ritta Jinggong, Nor Al-Shuhada Sabaruddin, Nur Afiqah Aqilah Azhar, Sultana Parvin Habeebur Rahman

Abstract: Five species of bat—Myotis gomantongensis Francis & Hill, 1998, Murina suilla (Temminck, 1840), Kerivoula intermedia Hill & Francis, 1984, Phoniscus jagorii (Peters, 1866), and Miniopterus magnater Sanborn, 1931—are newly recorded from Niah National Park, Sarawak, Malaysia. We also present an updated checklist of bat species compiled from seven sampling efforts conducted between 1958 and 2025. A total of 43 bat species from nine families have been recorded to date in the park. This species list serves as a baseline for bat conservation in this UNESCO World Heritage Site.

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DOI: 10.15560/21.5.1047

Authors: Faisal Ali Anwarali Khan, Muhd Amsyari Morni, Julius William-Dee, Jayaraj Vijaya Kumaran, Emy Ritta Jinggong, Praveena Rajasegaran, Qhairil Shyamri Rosli, Norfarhana Mazlan, Wan Nursyafinaz Wan Azman, Siti Nurbaidzuri Reli, Ummu Safiyyah Daud, Amirrah Amat, Lawrence Alan Bansa, Azniza Mahyudin, Noor Haliza Hasan, Juliana Senawi, Isham Azhar

Abstract: This study presents the first confirmed records of Mops johorensis (Dobson, 1873) (Chiroptera, Molossidae) from Borneo. Specimens were recorded at three sites: Sabah (Sungai Kangkawat, 50 m a.s.l) and Sarawak (Lubok Antu, 30 m a.s.l and Mount Penrissen, 1200 m a.s.l). Echolocation analysis revealed site-based variation in call frequencies. Morphological comparisons showed subtle differences between Bornean and Peninsular populations. Genetic analysis using the mitochondrial COI gene showed minimal divergence between Bornean and Peninsular individuals. Spatial modelling identified hotspots for Molos-sidae in northern Sabah and central Sarawak, with habitat suitability strongly influenced by bat and cave density, climate, and land use.

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DOI: 10.15560/21.5.930

Authors: Luis A. Trujillo, Bruce Miller, Diego I. Ordoñez-Mazier, Diana Salguero, Hefer Ávila-Palma, Nereyda Estrada, Diana Mansilla, Katarina Hooper, Walter Alvarez-Jacinto, José G. Martínez-Fonseca

Abstract: We provide new records of Myotis riparius Handley, 1960, expanding its known range in northern Central America. These include the first confirmed records for Guatemala, Belize, and El Salvador, as well as new localities in Honduras and Nicaragua. An individual was collected in Bocas del Polochic Wildlife Refuge, Izabal, Guatemala. Acoustic vouchers confirm its presence in the Maya Mountains of Belize and Ahuachapán and Sonsonate, El Salvador. This finding highlights the importance of combining capture and acoustic sam‑ pling, and reanalyzing archived recordings as new vocal signatures are validated.

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DOI: 10.15560/21.4.652

Authors: J. Manuel Aranda-Coello, L. Arturo Hernández-Mijangos, Manuel Weber

Abstract: We report Phyllostomus hastatus (Pallas, 1767), Greater Spear-nosed Bat, for the first time in Mexico. We captured two adult males in the Lacandona rainforest, in Chiapas, Mexico. These records extend the known northern distribution limit of the species by 120 km from the nearest occurrence in Lanquín, Alta Verapaz, Guatemala. Given the limited distribution of P. hastatus in the country and its potential vulnerability due to habitat loss, we highlight the need for more studies and conservation actions, aiming to its inclusion in the national list of threatened species.

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DOI: 10.15560/21.3.586

Authors: Leidy Viviana García-Herrera, Leidy Azucena Ramírez-Fráncel, Giovany Guevara, Burton K. Lim, Lida Marcela Franco-Pérez

Abstract: The systematic revision of the Platyrrhinus helleri clade, which was found to be a species complex, led to the elevation of some subspecies to species level and the description of Platyrrhinus angustirostris Velazco, Gardner & Patterson, 2010. The conservation status and threats to this species are currently poorly understood. We report a new record of this species, extending its distribution into west‑central Colombia. We used WorldClim bioclimatic layers to model its potential distribution; the results indicate that areas with stable temperatures and substantial precipitation during the warmest quarter offer the best environmental suitability for this species. This information is important for the conservation of P. angustirostris and its tropical habitats.

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DOI: 10.15560/21.3.506

Authors: Francisco X. Castellanos, Laura Simba, Jorge Brito

Abstract: Myotis moratellii Novaes et al., 2021 is a bat species that inhabits western Ecuador at low elevations (0–150 m a.s.l.). This study extends its northern distribution by 63 km into the foothill rainforests of the Chocó in Imbabura Province at 1,240 m a.s.l. Given the novel color patterns observed in the specimens collected, molecular approaches were necessary for species-level identification. Although the cause of this variation remains unclear, continued integrative taxonomy is critical to uncover the cryptic diversity within the genus.

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DOI: 10.15560/21.2.451

Authors: Isabel Warren, Laura Simba, Jorge Brito

Abstract: We present the first Ecuadorian records of Furipterus horrens (Cuvier, 1828) from outside the Amazon Rainforest. Our specimens, collected in the Río Manduriacu Reserve, Imbabura Province, is the first record of any individual from the family Furipteridae in the Ecuadorian Andes. The genetic divergences observed with cyt-b and COI markers (10–15%) support previous studies that F. horrens represents a species complex and that the western Ecuador population may represent an undescribed species. This represents a significant increase in the potential habitat for this species and highlights the need for increased research into tropical Andean bat taxonomy.

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DOI: 10.15560/21.2.304

Authors: Marco A. Rodríguez-Segovia, Laura Simba, Jorge Brito

Abstract: Sturnira koopmanhilli (McCarthy, Albuja & Alberico, 2006) is a rare and vulnerable bat species dis‑ tributed mainly in the Chocó biogeographic region of Ecuador and Colombia. A field expedition in north‑western Ecuador collected two new voucher specimens and tissues. We sequenced the whole cyt-b gene to confirm the taxonomic identity of these specimens. Furthermore, we reviewed three natural history collections to find unreported specimens. The present study provides seven new records for S. koopmanhilli in Ecuador and expands this species’ occurrence to the eastern slopes of the Andes.

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DOI: 10.15560/21.1.184

Authors: Matias Wajner, Francis Merlo, Daihana Argibay, Fernando Zamudio

Abstract: New records of the Endangered Parachoerus wagneri (Rusconi, 1930) are reported in northwestern Córdoba and south Santiago del Estero, Argentina. These records were obtained through interviews, confirmed with photographical evidence provided by the interviewees, and trail camera surveys. These findings confirm the presence of this species in strategic areas of its distribution and provide evidence of potential connection between northern and southern populations in Argentina. Participatory sampling is proving to be an essential tool for gathering high quality information in these areas, thus has become crucial in obtaining records and clarifying the distribution of P. wagneri.

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DOI: 10.15560/21.1.39

Authors: Md. Kamrul Hasan, Ashis Kumar Datta, Anik Saha, Sajeda Begum

Abstract: We confirm the presence of Hipposideros grandis G.M. Allen, 1936 from Baraiyadhala National Park, Bangladesh. The identification was based on morphometric attributes of two captured individuals and sequencing of the mtDNA cytochrome oxidase subunit I (COI) gene. The roosting habitat was chiefly degraded mixed evergreen forests characterized by steep and undulating terrain with many waterfalls and hilly streams. Our new record in Bangladesh extends the westernmost known range of H. grandis. The ecology of this bat species should be studied, as very little is known about it.

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DOI: 10.15560/20.5.1127

Authors: Maha Yudha Samawi, Aditya Dimas Pramudya, Ganjar Cahyadi, Jefta Natanael, Anton Nofianto, Ade Samsuli, Ihsan Jaya, Iman Suryana, Hazel Fahrezi, Amadeus Devin Gouw, Arni Sholihah

Abstract: Crocidura Wagler, 1832 is a widespread genus with high micro-endemism. Unfortunately, its Javan species lacks adequate information on its geographic distribution. Here, we present the first record of Crocidura umbra Demos, Achmadi, Handika, Maharadatunkamsi, Rowe & Esselstyn, 2016 from Mount Papandayan, which was previously thought to be endemic to Mount Gede, expand the geographic range of Crocidura orientalis Jentink, 1890 on Mount Papandayan and Crocidura monticola Peters, 1870 on Mount Sawal, and rediscover Crocidura brunnea Jentink, 1888 in Javan lowland forest. The new data provide important information to better understand this inadequately studied genus of small mammal on Java.

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DOI: 10.15560/20.5.1054

Authors: Luis H. Acosta S., José L. Poma-Urey, Kathrin Barboza-Marquez, Kathia Rivero, José Ochoa-G., Jorge Salazar-Bravo

Abstract: Insectivorous bats of the family Vespertilionidae have been grouped into eight tribes, with Lasiurini showing an extensive distribution in South America. In Bolivia, three species of lasiurine bats have been reported: Lasiurus blossevillii (Lesson & Garnot, 1826), L. ega (Gervais, 1856), and L. villosissimus (É. Geoffroy St.-Hilaire, 1806). The morphological analyses of specimens of this genus deposited in Bolivian scientific collections and comparisons with specimens from other countries (including holotypes) prompt us to report the first records of three species: Lasiurus atratus Handley 1996, L. castaneus Handley 1960, and L. egregius (Peters, 1870) in Bolivia, expanding their known geographic ranges to the southwestern part of the Amazon.

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DOI: 10.15560/20.4.969

Authors: Luis A. Trujillo, Cyril Mischler, Luis E. Gutiérrez-López, Mariandre Herrera, José G. Martínez-Fonseca

Abstract: Myotis is the most diverse genus of bats in Central America, with 10 species currently reported for Guatemala. Here, we present the first record of M. volans (H. Allen, 1866), and third record of M. auriculus Baker & Stains, 1955 in Guatemala, both from the cloud forest of the highlands of Sierra de las Minas Biosphere Reserve. This new locality may serve as one of the southernmost habitats akin to North American ecosystems for these two species. Our record of M. volans increases the number of bats in Guatemala to 105. Our findings underscore the importance of further research to understand patterns of biodiversity in Guatemala and Central America.

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DOI: 10.15560/20.3.828

Authors: Nuria Bernal-Hoverud, Daniela Morales-Moreno, Eyner Eugenio Quispe, Jorge Rojas, Omar Torrico, Robert B. Wallace, Jorge Salazar-Bravo

Abstract: Neogale africana (Desmarest, 1818), Amazon Weasel, is a poorly known South American carnivore, with records from north-central Brazil to Ecuador and south to central Peru and central Brazil. Based on two videographic records, we report the presence of this species in Bolivia and document a new elevational record. Furthermore, our new record extends the species’ distribution by 900 km from the nearest locality in Peru, and by 1500 km from the nearest Brazilian locality. Current gaps in its distribution are attributable to the low detectability and rarity of this mustelid.

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DOI: 10.15560/20.3.706

Authors: José Gabriel Martínez-Fonseca, Luis A. Trujillo, Erin P. Westeen, Fiona A. Reid, Charles Hood, Maynor A. Fernández-Mena, Luis E. Gutiérrez-López, Julio C. Molina-Loza, Carol L. Chambers

Abstract: Abstract. neighboring countries. Recently, an increase in biological surveys and access to natural preserves has led to a better understanding of species distributions in Nicaragua and across Central America. Here, we provide new departmental records for three species of didelphid, 18 chiropterans (Phyllostomidae, Molossidae, Vespertilionidae), one geomyid, and one mustelid from 21 sites across the country. This work underscores the need for additional sampling across Nicaragua to fill gaps in the known distribution of many species. This information can facilitate or inform conservation actions in established and proposed preserves in Nicaragua.

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DOI: 10.15560/20.3.586

Authors: Farah Carrasco-Rueda, Yolanda Alcarraz, Diego J. Zavala, Luiggi Carrasco-Escudero, Hugo T. Zamora

Abstract:

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DOI: 10.15560/20.2.518

Authors: Ahmad Ampeng, Hamden Mohammad, Jack Liam, Madeline George-Pau, Syafiani Osman, Emy Ritta Jinggong, Roslan Borhan, Ishak Hassim, Mohammad Fardy Abdul-Rahman, Shukor Md-Nor, Carl Traeholt, Badrul Munir Md-Zain

Abstract: Presbytis chrysomelas cruciger (Thomas, 1892) is a Critically Endangered langur subspecies that has rarely been studied due to the difficulty of encountering it in the wild. Previously, this subspecies was sighted in Maludam National Park, Sarawak, Malaysian Borneo. Here, we provide the first sighting record of P. c. cruciger in Jemoreng Protected Forest in Sarawak, where a total of eight groups were observed. We urge for further comprehensive studies and immediate conservation action.

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DOI: 10.15560/20.1.227

Authors: Noé González-Ruiz, Estefanía Nava, José Ramírez-Pulido, Diego F. García-Mendoza, Arturo Salame-Méndez, Alondra Castro-Campillo

Abstract: Myotis ciliolabrum (Merriam, 1886) is an insectivorous bat of the family Vespertilionidae and has a wide distribution from British Columbia, Alberta, and Saskatchewan in Canada, most of the western and central United States of America to central Mexico. In this study, we report one of the southernmost records from State of Mexico, based on two females collected in 1980 and stored in the Mammals Collection of the Universidad Autonóma Metropolitana. These records increases the knowledge on the distribution of this rare bat in Mexico.

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DOI: 10.15560/20.1.221

Authors: Marcelo Tardelli Rodrigues, David Steinwender, Bernardo Antonio Perez da Gama, Rodrigo Cumplido, Ubirajara Gonçalves de Melo Júnior, Sarepta Feitosa Araújo

Abstract: We report the first record of Pontoporia blainvillei (Gervais & d’Orbigny, 1844), Franciscana or La Plata River Dolphin, along the coast of Arraial do Cabo, southeastern Brazil. On 8 October 2017, a newborn was stranded in the surf zone of Prainha Beach and was returned to the sea. Although an occasional record, fills a distribution gap of the species’ occurrence on the coast of Rio de Janeiro state and, consequently, helps clarify the distribution pattern of P. blainvillei along the coast of the Brazil.

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DOI: 10.15560/20.1.212

Authors: Juliana Nascimento Martins, Cassiano Alves Marchett, Eduardo Benson Santos Barboza, Samantha Lamperti de Oliveira, Bruno Polese Raminelli, Rodrigo Cambará Printes

Abstract: We document records of Chrysocyon brachyurus (Illiger, 1815), Maned Wolf, from on a private farm in the municipality of Cambará do Sul, Rio Grande do Sul, Brazil. The farm borders Parque Nacional da Serra Geral, near Fortaleza Canyon. Twelve new records of Maned Wolf were captured with camera traps between 16 March 2023 and 10 November 2023, in five locations. These records are of significance due to the rarity of this species in Rio Grande do Sul.

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DOI: 10.15560/20.1.29

Authors: José Claudo de Sousa Monteiro, Ana Cristina Mendes de Oliveira, Fernanda Atanaena Gonçalves de Andrade, Lorrainy Simões de Sousa, Rebeca Silva Lima, Sayron Mathias Cruz dos Reis, Clarice Alves Corrêa de Souza, Ângelo Gabriel Teixeira Costa

Abstract: The bat Furipterus horrens (Cuvier, 1828) is endemic to the Neotropics, and in Brazil, it is widespread. However, there are few records in the Amazon Region where it is known only from the states of Amazonas and Pará. Here, we report the occurrence of a colony of F. horrens in an anthropogenic environment in the Brazilian Amazon. This type of habitat has not been previously reported for this species. We also compile and update the known occurrences of F. horrens in Brazil. Our new data brings to the number of localities for this species in Brazil to 76.

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DOI: 10.15560/20.1.1

Authors: Beatriz D. Natividade, Marcione Brito de Oliveira, Patrício Adriano da Rocha, Nádia M. C. Santos-Cavalcante, José Luís Passos Cordeiro, Valéria da C. Tavares

Abstract: We report on the occurrence of Anoura caudifer (É. Geoffory, 1818) in northeastern Brazil and expand its known geographic distribution. The new records are from the Ceará and Bahia states. The record from Ceará is the first from that state, and the two new records from Bahia are from the northern part of that state. These records extend the known distribution of A. caudifer by 600 km in the eastern South America.

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DOI: 10.15560/19.6.1061

Authors: Mounir R. Abi-Said, Elie El Haddad

Abstract: We report the first documented record of Acomys dimidiatus (Cretzschmar, 1826) from Lebanon. An opportunistic trapping was carried on in Hima Ibl Al Saqi, southern Lebanon for five consecutive nights during the spring and fall of 2022. Four spiny mice were trapped, and their morphometric measurements were recorded. These measurements resemble those documented for this species in other parts of the Middle East. Our new record extends the known distribution of Acomys dimidiatus approximately 45 km away from its most northern known geographic range.

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DOI: 10.15560/19.6.1049

Authors: Holly O'Donnell

Abstract: Coendu ichillus is a species of dwarf porcupine (Rodentia, Erethizontidae) found in the Neotropics. First described in 2001 from Ecuador and Iquitos, Peru, its known range has since been expanded to include the Amazonia of southern Ecuador, Peru, Colombia, and Brazil. Here I report a new distribution record of C. ichillus representing the first record from the province of Tambopata in the Madre de Dios region of southeastern Peru.

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DOI: 10.15560/19.5.757

Authors: Camilo A. Calderón-Acevedo, Darwin M. Morales-Martínez, Daniela Martínez-Medina, Miguel E. Rodríguez-Posada

Abstract: Anoura cadenai Mantilla-Meluk & Baker, 2006 is currently known from the Pacific versant of the Cordillera Occidental of Colombia. Based on the review of additional specimens we present a range extension to the southern Cordillera Central and the western slopes of the Cordillera Oriental, extending its range by 30 km north-west, 138 km south, and 155 km southwest; our data also increase the known elevation of the species from 1600 to 1970 m a.s.l. Additionally, we present a summary of the current knowledge regarding the distribution of A. fistulata in Colombia.

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DOI: 10.15560/19.5.753

Authors: Paul Alexandre, Benoit de Thoisy

Abstract: We report observations of Glironia venusta Thomas, 1912, Bushy-tailed Opossum, from coastal French Guiana, expanding the distribution of this species 300 km north of its previously known range.

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DOI: 10.15560/19.5.719

Authors: Fernando Carvalho, Karolaine P. Supi, Beatriz F. L. Luciano, Artur S. Sobrinho, Sam Generoso, Victor Quintas, Sérgio L. Althoff

Abstract: We captured the Spix’s Disk-winged Bat, Thyroptera tricolor Spix, 1823, at two locations in Santa Catarina state, southern Brazil. These are the first records of occurrence of T. tricolor from the state and expand the southern limit of the species’ geographical range by 408 km. With our new data, 52 species of bat are now con-firmed to occur in Santa Catarina; this state has the second richest bat fauna in southern Brazil.

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DOI: 10.15560/19.4.581

Authors: Wilson Noel Gómez-Corea, Leonel Marineros, Hermes Leonel Vega, Tania Paola López-Aguilar

Abstract: Three species of pocket gophers, family Geomyidae, have been reported from Honduras. We summarize and update the distribution of these species based on burrow observations, sightings, photographs, and a voucher specimen, most of which were obtained during surveys conducted between 2011 and 2022. We report one new, eastern most locality for Heterogeomys hispidus from the Department of Atlántida, a specimen of Orthogeomys grandis from the Department of La Paz, and 17 additional localities for geomyids. These include records located on the Caribbean versant of the Sierra Madre along the Río Ulúa and between the documented distributions of H. hispidus and O. grandis, and records between the known distributions of H. hispidus and H. cherriei. These observations provide an excellent opportunity to examine the relative ecological limits of the three taxa.

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DOI: 10.15560/19.4.521

Authors: Karla P. Borges-Jesús, Antonio Guillén-Servent, Vinicio J. Sosa

Abstract: Pteronotus gymnonotus (Wagner, 1843) has its northernmost distribution records in southeastern Mexico, where it is classified as an endangered species. In this report we communicate two northernmost extralimital acoustic records of the species in the state of Veracruz, obtained in 2018 and 2022. The average constant frequency of echolocation calls of P. gymnonotus was 56.5 kHz in Boca Andrea and 53.88 kHz in Buena Vista. Acoustic detection surveys of the conspicuous echolocation calls of the species would help much in the detection of the species in roosts and foraging habitats.

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DOI: 10.15560/19.4.509

Authors: Lourens H. Swanepoel, J. Philip B. Faure, Lauren Foden, Kevin W. Emslie

Abstract: Side-striped Jackal, Lupulella adusta (Sundevall, 1847), occurs in a vast area within sub-Saharan Africa. In South Africa, the current geographical distribution is limited to eastern coastal regions. Recent sightings from north-central areas of the country suggest a wider geographical distribution. Here we report on 5,130 confirmed, repeated detections of Side-striped Jackal. Of these, 3,625 captures were from 471 new locations not previously recorded in the scientific literature, thereby expanding their current geographical distribution. These new records were captured in 33 vegetation types, including the forest and grassland biomes where they are not commonly detected.

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DOI: 10.15560/19.3.409

Authors: José L. Poma-Urey, Luis H. Acosta S., Kathia Rivero, Marisol Hidalgo-Cossio, Erika Hingst-Zaher, Juliana Gualda-Barros, Beatriz D. da Natividade, Kathrin Barboza-Marquez, Héctor E. Ramírez-Chaves, Jorge Salazar-Bravo, José Ochoa G.

Abstract: We review the taxonomic identities of museum specimens of three bat species previously reported from Bolivia. We comment on some erroneously reported taxa, or taxa either not represented by voucher materials or based on insufficient data (including acoustic detections) to verify their taxonomic affinities. As result of this review, the list of bat species known to occur in Bolivia is updated to eight families and 133 species, unlike the nine families and 146 species of previous lists. Some recommendations for future research and a brief historical revision of bat inventories in the country are included.

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DOI: 10.15560/19.3.305

Authors: Francisco Morazán-Fernández, Christian G. Herrera-Martínez, Javier E. Cortés-Suárez, Diego R. Gutiérrez-Sanabria

Abstract: We provided a new occurrence report with ecological notes of Diclidurus albus Wied-Neuwied, 1820, from Costa Rica. Two individuals were found roosting in the roof of a cabin of the Luna Nueva Hotel ecolodge in Peñas Blancas, San Ramón, Alajuela, Costa Rica. We provide a distribution map of previous visual sightings and the new record of this bat species from Costa Rica.

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DOI: 10.15560/19.2.247

Authors: Lilen Sánchez-Castro, Gustavo A. Rivero-Castro, Elias G. Ruiz-Estebes, Orlando G. A. Pastrán-López, Nicolas J. Maya-Perez, Araceli R. Leos

Abstract: We report the first record of Lasiurus villosissimus (É. Geoffroy & St.-Hilaire, 1806) in San Juan prov-ince, Argentina. A male, determined as a juvenile by its degree of ossification of the epiphyses of the phalanges and the color and texture of the fur, was found on 31 August 2021 in a suburban area 2.44 km south of the city of San Juan. This new report increases the richness of bat species in the province and expands the distribution of this spe-cies towards the west of the country.

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DOI: 10.15560/19.2.209

Authors: Marijke N. de Boer, Michiel van den Bergh, Monique Pool, Tomas Willems

Abstract: A group of Mesoplodon europaeus (Gervais, 1885), Gervais’ Beaked Whales, were recorded along the Demerara Plateau (Suriname) at depths of 2,300 and 2,700 m. These are the first records of the species within the Guiana Basin. The Demerara Plateau may well offer an important habitat for deep-diving beaked whales, but further research is needed. We emphasize that, in light of a recent increase in oil and gas exploitation activities, there is an urgency to develop effective regionally and nationally specific conservation measures for whales in Suriname.

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DOI: 10.15560/19.2.183

Authors: Víctor Pacheco, Raisa Cairampoma, Alan Quispe, Giancarlo Velezvilla, Alicia Vasquez

Abstract: Chinchillula sahamae Thomas, 1898 is a sigmodontine rat, known to occur in southern Peru, northern Chile, and western Bolivia. In this study, we report new records of the species in the departments of Huancavelica and Junín, Peru, which extend this species’ known distribution 370 km northwest, and new records in the department of Tacna, which extend the upper elevational range of the species to 5100 m, 250 m higher than previously known. In addition, we include notes on natural history, especially nesting behaviour, based on direct observations.

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DOI: 10.15560/19.1.133

Authors: Manfredo A. Turcios-Casco, Golver S. Hernández, Felix E. Mancía, Carlos F. Molinero, José Muñoz, Celeste M. López, Nicté Ordóñez-Garza

Abstract: We report an occurrence of Glaucomys volans (Linnaeus, 1758) in Honduras after 43 years since its last verified record. The observation was in an area in which forestry and silvicultural activities are carried out for the sustainable exploitation of logging and timber of Pinus oocarpa in Las Lechuzas, department of Olancho (eastern Honduras). This record supports the initiation of new conservation activities in areas in which forestry is being implemented; population studies and the protection of their refuges are the priorities at its southernmost locality.

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DOI: 10.15560/19.1.41

Authors: Julián Mignino, Andrea del Pilar Tarquino-Carbonell, Agustina A. Ojeda, Pablo Teta

Abstract: Salinomys delicatus Braun & Mares, 1995 is a sigmodontine rodent endemic to perisaline environments in west-central Argentina. It is currently considered to be a Vulnerable species due to its patchy distribution and the loss of optimal habitats caused by intensive anthropogenic activities. In this work, we document the first record for this species in the Dry Chaco ecoregion of northwestern Córdoba province (Argentina), enlarging the geographic distribution of this species by approximately 115 km to the east of previously known occurrences. Our new record highlights the need to strengthen conservation policies in the Dry Chaco of Córdoba province.

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DOI: 10.15560/18.6.1369

Authors: Ángel Rodríguez-Moreno, E. Yafhed Martínez-Hernández, Jesús A. Fernández

Abstract: We report here the first record of a colony of the Brazilian Free-tailed Bat, Tadarida brasiliensis (I. Geoffroy, 1824), in a mine located in central Chihuahua, Mexico. This record represents the most central point of the distribution of the species in the state and is located in the Central Valleys biome. We highlight the importance of recognizing and preserving this mine as a refuge for the largest bat colony reported in the state of Chihuahua.

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DOI: 10.15560/18.5.1017

Authors: Michael Bruno, Fábio Falcão

Abstract: Pteronotus rubiginosus (Wagner, 1843) is a bat species belonging to the family Mormoopidae and has a wide distribution in the Amazon and Cerrado biomes in the Northern, Northeastern, and Central-Western regions of Brazil. In this study, we report the first record of this species from the state of Minas Gerais based on the capture of an individual using mistnets. With this record, we confirm the presence of P. rubiginosus in the Southeastern Region of Brazil, increasing to eight the number of chiropteran families there.

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DOI: 10.15560/18.5.995

Authors: Ingrith Yuliany Mejía-Fontecha, Paula A. Ossa-López, Fredy A. Rivera-Páez, Bruce D. Patterson, Héctor E. Ramírez-Chaves

Abstract: Dasyprocta azarae Lichtenstein, 1823 is currently distributed in Argentina, Brazil, and Paraguay, with controversial records in Bolivia. Recent records using trail cameras have expanded its distribution in the Chaco region of Paraguay, but its distribution remains unclear because of its morphological similarity to species in Bolivia and northwestern Argentina. We present an updated map of distribution of D. azarae based on the review of specimens in biological collections and literature. Our results show that D. azarae is distributed in four biomes, across 11 ecoregions, and has an extent of occurrence of 2,512,985 km2.

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DOI: 10.15560/18.4.907

Authors: Gandhy Portugal-Zegarra, Giüseppy Calizaya-Mamani, Pamela Sánchez-Vendizú, Marisel Flores-Quispe, Joaquín Ugarte-Núñez

Abstract: The recently described bat Lasiurus arequipae Málaga, Díaz, Arias & Medina, 2020 is endemic to Peru. Lasiurus are­quipae is currently known to occur at two localities in the department of Arequipa and one locality in the department of Tacna in southwestern Peru. Here, based on morphological and molecular data, we present a fourth locality that represents the southernmost record of this species and extends its known range 62 km south from the nearest locality in Tacna. Additionally, we provide information some aspects on the natural history and acoustic profile of L. arequipae.

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DOI: 10.15560/18.4.883

Authors: Héctor Hugo Siliceo-Cantero, Julieta Benítez-Malvido, Ireri Suazo-Ortuño, Victor Hugo Soria-González, Laura Bibiana Larios-Llamas, Gerardo Ceballos

Abstract: Black-eared Rice Rat, Handleyomys melanotis (Thomas, 1893), is a small, abundant rodent thought endemic to Mexico. We present a new record of this rat on Cocinas Island off the Chamela coast of Jalisco, Mexico. On this protected island located at 19.5°N, 105.1°W, we captured 11 specimens with the physical characteristics that confirm their identity as H. melanotis. We explore the possible implications of this species on Cocinas Island.

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DOI: 10.15560/18.4.867

Authors: Silvia Diaz, Victor Pacheco

Abstract: Sylvilagus andinus (Thomas, 1897) is a highland lagomorph from the Ecuadorean Paramos. Its distribution was tentatively believed to extend to northwestern Peru on the basis of ecological niche modeling and the inclusion of the Peruvian S. capsalis Thomas, 1913 as a synonym. Here, we confirm the occurrence of S. andinus in Peru by a morphological examination of seven new records from northwestern Peru and one new record from Ancash department in central Peru.

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DOI: 10.15560/18.4.821

Authors: Angel Neftali Osorio-Rodriguez, Alejandro Juárez-Agis, Cinthia Castro-Flores, Mayra Rivas González, Jacqueline Zeferino Torres, Luis Alvin Garzón Lopez, Giovani Hernández-Canchola

Abstract: We report new northwesternmost records of the Northern Little Yellow-eared Bat, Vampyressa thyone Thomas, 1909 (Phyllostomidae, Stenodermatinae), from Sierra de Atoyac, Guerrero, Mexico. We identified four individuals using morphological characters; two of the individuals were collected at 1,234 and 1,285 m above sea level, altitudes atypical for this species. Captures were recorded between 19:20 and 23:18 h, and all individuals presented signs of reproductive activity. With these data, we increase the scarce knowledge about this rare frugivorous bat.

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DOI: 10.15560/18.3.709

Authors: Jenny Curay, David Mantilla, Jorge Brito

Abstract: The subtropical forests of the Pacific slope of Ecuador lie within a region of wide biodiversity due to the biogeographic influence of Chocó. However, the diversity of small non-volant mammals in these forests is poorly understood. We conducted surveys at seven localities in 2020 and 2021 in Lita, northwestern Imbabura province, Ecuador. Sampling was done on an altitudinal range of 1,314–1,812 m. We used a combination of techniques (Sherman, Tomahawk, and pitfall traps) to capture non-volant small mammals. Our accumulated trapping effort was 2,724 trap/nights. We recorded 180 individuals of 23 species, of which rodents were the most diverse with 17 species, representing 73.9% of the composition. The record of Pattonimus musseri Brito et al. (2020) stands out, representing both latitudinal and elevational altitudinal range extensions. Finally, our results indicate that Lita is a natural area with a high concentration of non-volant mammals in the northwestern Ecuadorian subtropics.

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DOI: 10.15560/18.3.515

Authors: Daiane Chaves do Nascimento, Bruno Augusto Torres Parahyba Campos, Elmary Costa Fraga, Maria Claudene Barros, Nelson Jurandi Rosa Fagundes

Abstract: Cryptonanus agricolai (Moojen, 1943) is a small didelphid widely distributed across of central and northeastern Brazil and in the Brazilian Atlantic Forest. A recent phylogeographic study of this species identified three major mtDNA clades with strong geographic structure. Here, we present new records of C. agricolai in northeastern Brazil, including the first report for Maranhão state. We also identify a novel mtDNA lineage, sister to one of the three major clades, in some specimens from Maranhão, indicating that C. agricolai is morphologically and genetically more variable than previously recognized.

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DOI: 10.15560/18.3.493

Authors: Guilherme S. T. Garbino, Marcus Vinicius Brandão, Valeria da Cunha Tavares

Abstract: We report on the occurrence of Choeroniscus godmani (Thomas, 1903) in Brazil and Panama. The Panama record fills a distribution gap for the species in Central America. The three records from Brazil are from the Amazonia in the state of Pará, and from the Cerrado and an Amazonia/Cerrado ecotone in the state of Mato Grosso. At two localities in Brazil, C. minor, a larger species of Choeroniscus, was also recorded. These new records extend the distribution of C. godmani by 2,065 km south to central South America. One of the Brazilian specimens represents the first record of supernumerary incisors in C. godmani.

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DOI: 10.15560/18.3.463

Authors: Priscilla Braga Petrazzini, Ludmilla Moura de Souza Aguiar

Abstract: Jaguar, Panthera onca (Linnaeus, 1758), is a paramount predator that contributes to ecosystem balance but rarely inhabits small conserved areas. We report a new record of a Jaguar in Brasilia National Park that was photographed while monitoring the Giant Anteater (Myrmecophaga tridactyla Linnaeus, 1758) population using camera traps. This Jaguar record is critical in documenting the presence of this species in highly human-inhabited and urbanized areas. Our new record also contributes to the understanding of the current distribution of remaining individuals and confirms the importance of large-scale protected areas in providing habitat for species, such as jaguars, that have large ranges.

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DOI: 10.15560/18.2.369

Authors: Nelish Pradhan, C. William Kilpatrick

Abstract: Small mammals were surveyed in areas of the Annapurna Conservation Area, Shey Phoksundo National Park, and the Manaslu Conservation Area between 2013 and 2015. We collected 117 specimens representing 10 species of small mammals from two orders, Soricomorpha and Rodentia. We report on localities sampled from Central Nepal expanding known distributions and reporting new sampling localities for Apodemus gurkha Thomas, 1924; Apodemus pallipes (Barrett-Hamilton, 1900); Mus musculus Linnaeus, 1758; Niviventer fulvescens (Gray, 1847); Rattus rattus (Linnaeus, 1758); Rattus pyctoris (Hodgson, 1845); Rattus nitidus (Hodgson, 1845); and Soriculus nigrescens (Gray, 1842). Specimens collected from the Manaslu Conservation Area, which had not been previously surveyed, documented the occurrence of four species between previously known collection localities in the Kali Gandaki Valley and the Langtang and Khumbu valleys. Distribution records of Episoriculus soluensis Gruber, 1969 in Nepal are clarified for this recently recognized species.

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DOI: 10.15560/18.2.335

Authors: Issachar L. López-Cuamatzi, Yolanda Hortelano-Moncada, Jorge Ortega, Sandra M. Ospina-Garcés, Gerardo Zúñiga, M. Cristina Mac Swiney G.

Abstract: We report the first record of Townsend’s Big-eared Bat, Corynorhinus townsendii (Cooper, 1837) from Chiapas, Mexico, based on three females collected on 29 September 1979 near Ocozocoautla de Espinosa and stored in the Colección Nacional de Mamíferos of the Instituto de Biología at Universidad Nacional Autónoma de México. The Chiapas locality is ~180 km east of the closest previously known occurrence in Tehuantepec, Oaxaca, Mexico. This extends the distribution of C. townsendii through tropical areas of southeastern Mexico and corroborates the capacity of this species to inhabit a diversity of ecosystems.

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DOI: 10.15560/18.2.265

Authors: Raul Afonso Pommer Barbosa, Marcela Alvares Oliveira

Abstract: We report two new records of occurrence of Six-banded Armadillo, Euphractus sexcinctus (Linnaeus, 1758), in the state of Rondônia, Brazil, based on roadkills. These new records extend the geographic distribution of this species by 70 km. The records are from the region with a high deforestation rate called the “Arc of Deforestation”, which includes the state of Rondônia. Euphractus sexcinctus was recorded in an area with a high loss of vegetation cover, where the forest is being converted to pasture.

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DOI: 10.15560/18.1.219

Authors: Fauziyah, Fitri Agustriani, Rozirwan, Apon Z. Mustopa, Irianes C. Gozali, Muhammad Iqbal, Ellis N. Ningsih

Abstract: Irrawaddy Dolphin, Orcaella brevirostris (Owen in Gray, 1866), has been reported in the waters of Berbak Sembilang National Park, Indonesia, since 1990. We used interview techniques, direct observations, and secondary data from the literature to show that this dolphin occurs on the east coast of South Sumatra from October to February. An Irrawaddy Dolphin bycatch was recorded on 26 January 2021 in a gillnet. There have been historical sightings of fewer than six individuals of Irrawaddy Dolphins between 1990 and 2013 in the estuaries of Bogem, Bungin, Ngirawan, Terusan Dalam, Betet Island, Banyuasin, Lalan, and Tanjung Carat to Makarti Jaya. We map the geographic distribution of Irrawaddy Dolphin in South Sumatra.

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DOI: 10.15560/18.1.11

Authors: Flávio Kulaif Ubaid, Tarcilla Valtuille, Helbert Sansão, João Marques Lima, Adriano Garcia Chiarello, Fernando Lima, Daniel da Silva Ferraz, Fabiano Rodrigues de Melo

Abstract: We report from three localities four new records of the threatened Brazilian Atlantic Forest endemic Chaetomys subspinosus (Olfers, 1818). These are the first records of this porcupine species from the state of Minas Gerais, and these new data extend the distribution of this species by approximately 220 km to the southwest. As C. subspinosus was observed in areas of transitional vegetation, this species may be found in a much broader spectrum of habitat types than previously thought. We recommend further surveys focusing on documenting this species.

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DOI: 10.15560/17.6.1731

Authors: Marcella De Assis Araújo Abreu, Valeria Da Cunha Tavares, Ligiane Martins Moras

Abstract: We characterize the bat fauna of forested sites in the municipality of Domingos Martins, Espírito Santo state, southeastern Brazil, and update the list of bat species of the state. We conducted a rapid inventory using ground-level mist nets (27,000 m²·h effort) and occasional roost searching, which resulted in a list of 23 species belonging to Phyllostomidae (18 species), Vespertilionidae (3), and Molossidae (2). We report the first record of Molossops neglectus Williams & Genoways, 1980 and Myotis lavali Moratelli, Peracchi, Dias & Oliveira, 2011 from Espírito Santo, bringing the total number of confirmed species in the state to 86. The molossid Nyctinomops laticaudatus (É. Geoffroy, 1805) was exclusively recorded in its diurnal roost in rocky outcrops. Our study fills knowledge gaps in the distribution of bat species in southeastern Brazil, and more specifically in the highly diverse coastal Atlantic Forest of Espírito Santo. These data reinforce the importance of continuously inventorying and documenting bats in the Neotropics.

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DOI: 10.15560/17.5.1359

Authors: Juan C. Cepeda-Duque, Andrés Link, Luis Mazariegos, Elver Ledesma-Castañeda, Uriel Rendón-Jaramillo, Héctor E. Ramírez-Chaves

Abstract: The Colombian weasel, Neogale felipei (Izor & de la Torre, 1978), is one of the most enigmatic and threatened carnivores in South America, with only six confirmed records in the Andes of Ecuador and Colombia. During a long-term trail camera survey conducted at Mesenia-Paramillo Natural Reserve, we recorded the northernmost occurrence of the species, which extends its distribution by approximately 120 km to the north from the nearest previously known locality in Colombia. We also provide some comments on its natural history.

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DOI: 10.15560/17.5.1353

Authors: Jorge Antônio Lourenço Pontes, Rafael Andrada de Araújo Martins, Luiz Eduardo Mendonça Regio, Mário Luiz Gomes Soares, Filipe de Oliveira Chaves, Helena Godoy Bergallo

Abstract: Large mammals, especially felids such as Mountain Lion, Puma concolor (Linnaeus, 1771), are disappearing from their original habitats, due to the loss of natural areas and hunting, especially in the metropolitan regions. In the city of Rio de Janeiro, Brazil, P. concolor had not been observed for almost a century, despite the city having forest fragments as large as 10,000 ha. Here we present records that confirm the reappearance of this species in the city of Rio de Janeiro, where it has been considered extirpated.

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DOI: 10.15560/17.5.1345

Authors: Ingrith Yuliany Mejía-Fontecha, Daniela Velásquez-Guarín, Karol Dangeli Pérez Tapie, Paula Andrea Ossa-Lopez, Fredy Arvey Rivera-Páez, Héctor E. Ramírez-Chaves

Abstract: In Colombia, seven species of small-eared shrews of the genus Cryptotis Pomel, 1848 have been reported, and five of them endemic to the country. Here, we present the first confirmed record from Colombia of Cryptotis niausa Moreno Cárdenas & Albuja, 2014, a species that was previously known from only nine localities in Ecuador. The Colombian record comes from the Departamento de Nariño, in extreme southwestern Colombia, and it is supported by morphology and cytochrome-b gene evidence. This record increases to eight the number of species of Cryptotis from Colombia.

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DOI: 10.15560/17.5.1221

Authors: Andrea M. Neme, Ana C. Ochoa, Carla V. Rueda, Lucas Palomo, Marta P. Rueda, Oscar B. Quiroga, Cecilia Escalada, Roberto G. Castillo Slawycz, M. Guadalupe Laitan, M. Florencia Speciale, P. Micaela Aguirre, Silvia E. Marelli, Facundo Lazarte, Claudio Gimenez, Cintya Prado, Edith Fecha, Nelson Ybarra, Pedro Orieta, Publio Araujo, Marta Iturre

Abstract: New records of the Endangered Catagonus wagneri (Rusconi, 1930) are reported in Campo Grande Community of peasants, northwestern Santiago del Estero, Argentina. The new records were obtained through camera traps as well as the finding of a skull and footprints. We conducted interviews confirmed the historical presence of the species. The records indicate the presence of C. wagneri in the North Biological Corridor, expanding this species’ distribution in Santiago del Estero province, providing initial evidence of potential connection between northern and southern populations.

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DOI: 10.15560/17.4.1147

Authors: Luis A. Trujillo, Raiza Barahona-Fong, Cristian Kraker-Castañeda, Arnulfo Medina-Fitoria, Jonathan Hernández, Sergio G. Pérez

Abstract: Two species of Eumops Miller, 1906 are reported with voucher specimens from Guatemala: E. auripendulus (Shaw, 1800) and E. ferox (Gundlach, 1861). Eumops underwoodi Goodwin, 1940 has been known only by recordings. We collected dead specimens of E. ferox and E. underwoodi in a wind farm. Additionally, we provide acoustic data, and an allometric scaling hypothesis supports the identification of E. underwoodi, as it reflects the largest body size for sympatric free-tailed bats. We increase the list of bats in Guatemala to 104 species.

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DOI: 10.15560/17.4.1117

Authors: Andrea Weiler Gustafson, Robert D. Owen

Abstract: A Brazilian Porcupine, Coendou prehensilis (Linnaeus, 1758), was encountered and photographed at night on a recently cleared forest path in Presidente Hayes Department, Paraguay. Although C. prehensilis is widespread and has been reported from a variety of ecoregions and habitats, this record in western Paraguay is the first from the South American Humid Chaco ecoregion.

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DOI: 10.15560/17.4.1095

Authors: Héctor E. Ramírez-Chaves, Paula Andrea Ossa-López, Luis Lasso-Lasso, Fredy A. Rivera-Páez, Néstor Roncancio-Duque, Luis A. Escobedo-Morales, Jesús E. Maldonado

Abstract: Mazama temama (Kerr, 1792) is a representative species of the northern Neotropics, but the geographic range limits for this species remain unclear. We report the southernmost record of M. temama from the southwestern Colombian Andes, increasing the previously known range of this species by more than 300 km. We obtained a cytochrome gene sequence (849 bp) which is 95% identical to samples from Mexico. This record raises the need for extensive sampling to obtain more complete information about the distribution of M. temama in northern Colombia.

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DOI: 10.15560/17.4.1067

Authors: Déborah Maria Soares Ramos, Lucas Gonçalves da Silva, João Pedro Souza-Alves, Isabella Ribeiro Carlos, Martín Alejandro Montes

Abstract: The Pernambuco Endemism Center is a key region for the maintenance of biodiversity of the Brazilian Atlantic Forest. Inventories of the medium-sized terrestrial mammals in this region are scarce, and several information gaps still remain. We conducted a camera trap survey at the Tapacurá Ecological Station, São Lourenço da Mata, Pernambuco. We obtained new records of at least four females and three male individuals of Ocelot, Leopardus pardalis (Linnaeus, 1758). The records provide important data about occurrence and distribution of a threatened population of this mesocarnivore in northeastern Brazil.

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DOI: 10.15560/17.4.1031

Authors: Matias E. Mac Allister, Nicolás R. Chimento, Gabriela P. Fernández

Abstract: The maned wolf (Chrysocyon brachyurus, Illiger 1815) is the largest canid in South America. The objective of this work is to present a new border registry of Chrysocyon brachyurus, in the Department of Gualeguay, Province of Entre Ríos (32°59'51.78''S, 59°30'59.12''W); validate its membership in that taxon through the use of the COI molecular marker and review and comment on recent reports of specimens recorded further south of the known range of the species in a conservation context.

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DOI: 10.15560/17.3.1007

Authors: Yangjosé Juárez-Pérez, Pamela Sánchez-Vendizú, Mariella Leo, Sam Shanee, Jhonny Ramos, Víctor Pacheco

Abstract: Echimys saturnus Thomas, 1928 is an echimyid rodent that has been recorded in lowland, premontane and montane forests in Ecuador and lowland forests in Peru. Here, we report five new records of this species in the Peruvian Yungas ecoregion. Our records come from Amazonas, San Martín, and Huánuco departments. The Huánuco specimen, collected at 3300 m a.s.l., constitutes the highest and the southernmost record for the species, extending its distribution range by 251 km south. Additionally, we provide some notes on the natural history and conservation status of the species.

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DOI: 10.15560/17.3.877

Authors: Dennisse Ruelas, Victor Pacheco

Abstract: The Seasonally Dry Tropical Forests in Peru are well known for their bird and plant diversity and endemicity, but little is known about the diversity of small mammals. We report the diversity of small volant and non-volant mammals from the Seasonally Dry Tropical Forests of the Huallaga river basin in the San Martín Department, working on both sides of the river, making a sampling effort of 3060 traps-night for non-volant and 104 mist nets-night for volant mammals. We recorded 29 species, including five marsupials, three rodents, and 21 bats. Among the bats, phyllostomids were the most diverse group with 16 species. Short-tailed Spiny-rat, Proechimys brevicauda (Günther, 1877) and Seba's Short-tailed Bat, Carollia perspicillata (Linnaeus, 1758), featured the highest relative abundance. In addition, we report the first records for the San Martín Department of Peropteryx macrotis (Wagner, 1843), Saccopteryx bilineata (Temminck, 1838), Lonchorhina aurita Tomes, 1863, Vampyriscus bidens (Dobson, 1878), and Myotis simus Thomas, 1901. The species richness and diversity indices indicate the study site has a high diversity value; however, fragmentation and rapid changes in land-use are the main threats faced by the biodiversity of these dry forests.

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DOI: 10.15560/17.2.683

Authors: Antonella Argoitia, Pedro Cuaranta, Rubén M. Barquez

Abstract: Cynomops planirostris (Peters, 1866) was previously known in Argentina only from the provinces of Salta and Jujuy in the northwest and in Misiones in the northeast. Here, we newly report this species from the province of Corrientes and the Humid Chaco ecoregion. We also offer information on the natural history of the species and on the bat assemblage present in the study area. This record increases the number of species of bats known in Corrientes to 34.

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DOI: 10.15560/17.2.669

Authors: Fernando Álvarez-Córdova, Jesús A. Fernández

Abstract: We document the taxonomic diversity of medium-sized and large mammals present in Rancho Experimental Teseachi, a teaching and research facility of the Universidad Autónoma de Chihuahua located in the northwestern part of Chihuahua, Mexico. Monthly samplings were made with lineal transects of 5 km in two habitats, open grassland and pine-oak forest, where camera-traps and scent-stations were placed, and tracks were searched. Sixteen species of medium-sized and large mammals were recorded in the area, representing 12.03% of the state’s diversity. The greatest diversity was found in the pine-oak forest. Implementing three different sampling techniques at the same time allows the documentation of mammal diversity more efficiently than using only one or two sampling techniques.

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DOI: 10.15560/17.2.575

Authors: Guilherme S.T. Garbino, Viviane Filgueiras, André L.A. Lima, Fernanda D. Abra, Paula R. Prist, Paul F. Colas-Rosas

Abstract: We report on new occurrence records of Lophostoma brasiliense Peters, 1867 (Chiroptera, Phyllostomidae) from the states of São Paulo and Mato Grosso do Sul, southeastern Brazil. Specimens from São Paulo were mist-netted in an area originally covered by the Atlantic Forest and Cerrado ecosystems of which only small and isolated fragments remain, while the specimens from Mato Grosso do Sul came from a well-preserved Cerrado area. The new records confirm the presence of L. brasiliense in the Brazilian state of São Paulo and clarify the southern edge of the species’ range.

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DOI: 10.15560/17.2.471

Authors: Darwin M. Morales-Martínez, Miguel E. Rodríguez-Posada, Sara G. Acosta-Morales, Ana M. Saldarriaga

Abstract: We document the first record of Laval’s Disk-winged Bat, Thyroptera lavali Pine, 1993, from the Amazon region of Colombia. This record increases to four the number of Thyroptera species in the country and extends the known range of T. lavali 428 km east and 338 km north from the nearest previous localities. The distribution of this species now comprises 11 localities from six ecoregions and five countries: Brazil, Colombia, Ecuador, Peru, and Venezuela. We highlight the paucity of knowledge on bat species in the Colombian Amazon.

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DOI: 10.15560/17.2.385

Authors: Victor Pacheco

Abstract: Thomasomys princeps (Thomas, 1895) is a large, sigmodontine rat and a member of the “aureus” group of the highly diverse genus Thomasomys. This species is only known from the Cordillera Oriental, Colombia; however, based on a recent examination of specimens of Thomasomys from Venezuela, I report the first record of T. princeps from Venezuela, in the Páramo del Tamá near the Colombian border. This record extends the distributional range of the species by 360 km northeast, representing the northernmost record of the species and of the “aureus” group.

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DOI: 10.15560/17.2.339

Authors: José Manuel Mora, Jairo García Céspedes, Lucía Isabel López, Gerardo Chaves

Abstract: Scotinomys xerampelinus has a restricted distribution in the Cordilleras Central and Talamanca of Costa Rica and western Panama, at an elevational range between 2100 and 3400 m. We report individuals observed at Cerro Chirripó, Costa Rica at 3820 m, which extends upwards the known elevational range by 420 m. The altitudinal range extension may indicate either incomplete surveys in the study area or an upslope shift due to increasing temperatures from climate change, a phenomenon that has forced several Costa Rican vertebrate species to transition to higher elevations.

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DOI: 10.15560/17.2.311

Authors: Rair Sousa Verde, Sidney Ferreira Oliveira, Andressa Oliveira Meneses, Felipe Gonçalves, Luana Alencar, Thiago Martins Silva, Armando Muniz Calouro, Henrique Augusto Mews, Elder Ferreira Morato

Abstract: There are only a few published bat surveys from the southwestern Brazilian Amazon, but recent studies have reported additional bats species in the region. We provide the first list of bat species from Floresta Estadual do Antimary (Antimary State Forest) and record for the first time Glyphonycteris sylvestris Thomas, 1896 and Phylloderma stenops Peters, 1865 in the state of Acre, increasing to 64 the number of species known from this state. Our survey enlarges the known geographic range of G. sylvestris in Brazilian territory and improves the inventory of bat species in a poorly sampled region of the Amazon.

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DOI: 10.15560/17.1.171

Authors: Farah Carrasco-Rueda, Diego J. Zavala, Yolanda Alcarraz, Luiggi Carrasco-Escudero, Hugo T. Zamora

Abstract: Based on recent bat surveys in the Department of Madre de Dios, Peru, we present distribution records for Thyroptera wynneae Velazco et al., 2014 and Molossops temminckii (Burmeister, 1854), which extend the known distributions and represent the southernmost records of these species in Peru. We also present records of Molossus alvarezi González-Ruiz et al., 2011, which are the easternmost occurrences for this species in the country. Also included are new records of Eumops maurus (Thomas, 1901) and Molossus coibensis Allen, 1904 which fill existing gaps in the knowledge of the distribution of these species in the Neotropics.

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DOI: 10.15560/17.1.1

Authors: Lizette Siles, Robert B. Wallace

Abstract: The phyllostomid bat Gardnerycteris koepckeae (Gardner & Patton, 1972) was considered endemic to Peru and restrict to only two localities, until it was recently collected in a new locality in Colombia. Now we report G. koepckeae for the first time in Bolivia, based on a specimen collected in a well-preserved montane forest inside the Parque Nacional y Área Natural de Manejo Integrado Madidi. The site of capture is at 2280 m, which is the highest elevational record for the species. Gardnerycteris koepckeae is a rare species restricted to a fragile ecosystem threatened by mining and other changes in land use.

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DOI: 10.15560/16.6.1747

Authors: Luis A. Trujillo, Raiza Barahona Fong, Sergio G. Pérez

Abstract: We found the four species of Nyctinomops Miller, 1902 living in sympatry in central Guatemala. All specimens were found dead under turbines of a wind farm. Nyctinomops femorosaccus (Merriam, 1889), was previously known from northern Mexico and southwestern United States, and this record extends its distribution at least 1150 km southward, representing the first record for Guatemala and Central America. Although N. aurispinosus (Peale, 1848) and N. macrotis (Gray, 1839) were already known from Central America (Honduras), and these are the first records for Guatemala.

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DOI: 10.15560/16.6.1673

Authors: Fernanda D. Abra, Guilherme S. T. Garbino, Paula R. Prist, Fabio O. Nascimento, Frederico G. Lemos

Abstract: We present new records of Hoary Fox, Lycalopex vetulus (Lund, 1842), and Pantanal Cat, Leopardus braccatus Cope, 1889, from a Cerrado-Caatinga-Atlantic Forest ecotone, Brazil. Records are based on three roadkilled specimens (two Hoary Foxes and one Pantanal Cat) from Vitória da Conquista, southern Bahia. Although highly anthropized, the region still holds a mosaic of Cerrado savannas and Caatinga seasonally dry forests. Our records expand the distribution of both species eastwards to southern Bahia and suggest that Leopardus braccatus may occur marginally in the Caatinga.

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DOI: 10.15560/16.6.1627

Authors: Héctor E. Ramírez-Chaves, Diego Caranton-Ayala, Darwin M. Morales-Martínez, Edilson Rosero

Abstract: The Western Amazonian Dwarf Porcupine, Coendou ichillus Voss & Da Silva, 2001, is poorly known in South America. The species is known only from eight localities in the Amazon and Orinoquia regions of Brazil, Colombia, Ecuador, and Peru. In Colombia, it is known from one locality in the Orinoquía region, based on a specimen collected in 1956. We present a new distribution record which adds information about the presence of C. ichillus in the Napo Moist Forests ecoregion, in the Department of Putumayo, Amazon region of Colombia. We suggest that C. ichillus is more widely distributed in the Amazon region of the country. However, based on the number of known records to date, C. ichillus is the rarest species of porcupine.

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DOI: 10.15560/16.6.1545

Authors: Camilo A. Calderón-Acevedo, Nathan Muchhala

Abstract: Anoura latidens Handley, 1984 is a nectarivorous bat with a wide elevational and latitudinal distribution, from Venezuela and Guyana to southeastern Peru. We reviewed mammal collections of the genus Anoura Gray, 1838 and identified two individuals previously attributed to A. caudifer (É. Geoffroy Saint-Hilaire, 1818) as A. latidens based on their premolar morphology and morphological measurements. In this note we report the first record of A. latidens in the Yungas forests of Bolivia, which extends its geographic range by 1,006 km southeast of its previous southernmost record in Peru.

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DOI: 10.15560/16.5.1337

Authors: Julián Lozano-Flórez, Sebastián Cifuentes-Acevedo

Abstract: Although taxonomy, ecology, and natural history information of the arboreal spiny rats is available, many gaps in some species distribution still exist. We report here the first records of the Peruvian Toro, Toromys rhipidurus (Thomas, 1928), in southern Colombia. This arboreal spiny rat was only known from the Peruvian Amazonia. These new records extend the known geographical distribution of the species by about 61 km northward from its nearest known locality, at Río Yavarí, Peru. In addition, we provide some notes on the natural history of the species.

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DOI: 10.15560/16.5.1329

Authors: Guillermo Funes, Xochilt Pocasangre-Orellana

Abstract: Lontra longicaudis Olfers, 1818 (Neotropical Otter) has been poorly studied in El Salvador. We report sightings and traces of L. longicaudis which were found in Río Angue, in the department of Santa Ana, and Río Sapo, Río Negro, and Quebrada de Perquín, in the department of Morazán. Moreover, we review the sight records of the species in the scientific literature, the mammal collection of the University of California, Los Angeles, and citizen reports with verifiable evidence. This is the first compilation of information on L. longicaudis occurrences in El Salvador.

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DOI: 10.15560/16.5.1269

Authors: Alfredo Leal-Sandoval, Alejandro Tepatlán-Vargas, Gabriel López-Segoviano, Orlando Omer Linares-Holguín, Pedro Sanchez-Peña, Laura López-Hoffman

Abstract: The Big Crested Mastiff Bat, Promops centralis (Thomas, 1915), is widely distributed from Mexico to South America but has yet to be reported in the state of Sinaloa, Mexico. We collected 122 acoustic recordings of P. centralis from tropical dry forest and agroecosystems in Sinaloa and Sonora for two years (2015 and 2016). We documented a new record for P. centralis outside the known distribution area in northwestern Mexico. Our results reveal that the current P. centralis distribution needs to be reevaluated.

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DOI: 10.15560/16.5.1229

Authors: Meshach A. Pierre, Leroy Ignacio, Evi A. D. Paemelaere

Abstract: Large mammals are key contributors to forest ecosystems globally, but Neotropical mammal populations are understudied. We employed remotely triggered camera traps and track surveys to assess the mammal community in the newly accessible upper Berbice region of Guyana. In a cumulative 2,821 trap nights between two camps and 14 km of track surveys we recorded 18 species of mammals. Camera trap records showed that Red-Rumped Agouti (Dasyprocta leporina (Linnaeus, 1758)) featured the highest relative abundance at both camps, while Tayra (Eira barbara (Linnaeus, 1758)), Amazonian Brown Brocket Deer (Mazama nemorivaga (F. Cuvier, 1817)), Giant Anteater (Myrmecophaga tridactyla (Linnaeus, 1758)) and Giant Armadillo (Priodontes maximus (Kerr, 1792)) the lowest. We also report naïve occupancy estimates. Detections of threatened and disturbance sensitive species indicate that the study site has a high biodiversity value. We provide recommendations for further study in this recently disturbed ecosystem and other understudied regions of Guyana.

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DOI: 10.15560/16.5.1133

Authors: María Eugenia Montani, Andrés Alberto Pautasso, María Mónica Díaz

Abstract: We present the first record of Promops centralis Thomas, 1915 for Santa Fe province, Argentina. This species was previously known in Argentina only from Formosa province. This new record adds a second province to the distribution of this species in Argentina and a new ecoregion, the Espinal. Furthermore, this record extends the distribution area of P. centralis by almost 610 km to the south and increase to 24 the number of bats species in Santa Fe province.

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DOI: 10.15560/16.5.1119

Authors: Tania Marisol González, Nathalia Moreno-Niño, Eduardo Molina, Dolors Armenteras

Abstract: We report the first confirmed occurrence of the Guianan White-eared Opposum Didelphis imperfecta Mondolfi & Pérez-Hernéndez, 1984 (Didelphimorphia: Didelphidae) from Colombia. The individual was captured in a tropical lowland rain forest in the easternmost portion of the Colombian Orinoco Llanos region. The species is endemic of the Guiana Shield and has the smallest distribution area among the species of the genus. Our record shows that the Orinoco river does not constitute a biogeographical barrier for the species. To date, only two species of the genus Didelphis Linnaeus, 1758 have been recorded in Colombia, our results increase the reported number of records for this genus.

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