DOI: 10.15560/22.5.869

Authors: Gustavo F. de Carvalho-Souza, Diego V. Medeiros, Enrique González-Ortegón, Jose A. Cuesta

Abstract: We report range extensions for two species of caridean shrimp, Synalpheus pandionis Coutière, 1909 and Periclimenaeus perlatus (Boone, 1930), from the continental shelf off Bahia, Brazil. These records represent the southernmost occurrences for both species in the south-western Atlantic. Synalpheus pandionis was found associated with the sponge Mycale (Zygomycale) angulosa (Duchassaing & Michelotti, 1864), while P. perlatus was found associated with the sponge Aplysina fistularis (Pallas, 1766). We provide morphological diagnoses and DNA sequences (16S) for our South Atlantic specimens, contributing to the knowledge of their species’ biogeography and ecology.

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DOI: 10.15560/21.6.1231

Authors: Motoya Hanai, Yusuke Fuke

Abstract: The Ogasawara (Bonin) Islands are an oceanic island group and World Natural Heritage site in Japan. This study reports the first record of the freshwater prawn Macrobrachium australe (Guérin-Méneville, 1838) on Chichi Island in the Ogasawara Islands. Although this amphidromous species has high dispersal ability, our comprehensive surveys across the islands found only one individual, with no evidence of establishment or reproduction. This case study of the accidental dispersal of amphidromous species to oceanic islands is significant from a biogeographical perspective.

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DOI: 10.15560/21.5.848

Authors: Wei Tian, Jin Cheng Yu, Jin Zhou

Abstract: Recent taxonomic revisions of Libystes A. Milne-Edwards, 1867 species in the Western Indian Ocean have clarified the diagnostic characters of the type species, L. nitidus A. Milne-Edwards, 1867. Based on these findings and through comprehensive examination of a male specimen collected from the East China Sea, we report the first record of L. senckenberg Spiridonov, Naderloo & Apel, 2021 from Chinese waters. This newly recorded species can be distinguished from its two congeners, L. edwardsi Alcock, 1900 and L. nitidus, both previously documented from China, through several diagnostic morphological features.

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DOI: 10.15560/20.5.1142

Authors: Noor Farhana Fakhruddin, Siti Azizah Mohd Nor, Amirah Hurzaid

Abstract: We document the first record of Kishinouyepenaeopsis incisa (Wang & Liu in Liu & Wang, 1987) (Decapoda, Penaeidae) from the west coast of Peninsular Malaysia. Five specimens were initially collected during a trawling survey in April 2014, followed by another 17 specimens collected during sampling sessions from February 2023 to August 2023. Previously, this species was known to occur only in South China and Bangladesh. We provide detailed morphometric and meristic data, along with brief diagnostic characters, supported by genetic analysis that corroborates the species identity and distribution.

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DOI: 10.15560/19.6.821

Authors: Yusuke Fuke, Tomoaki Maruyama

Abstract: Knobtooth Prawn, Macrobrachium mammillodactylus (Thallwitz, 1891), is an amphidromous freshwater prawn that occurs in the tropics of the western Pacific Ocean. Here, we report a new record of this species from Miyako Island, in the Ryukyu Archipelago, Japan. The obtained specimens were mature, suggesting that they had overwintered. This record updates the northern limit of M. mammillodactylus and suggests an expansion of the range of this species.

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DOI: 10.15560/18.2.363

Authors: Juliana G. Araújo, Whandenson M. Nascimento, Carlos A. M. Martins, Paulo H.P. Nobre, Allysson P. Pinheiro

Abstract: We observed the occurrence of the pseudothelphusid freshwater crab Kingsleya attenboroughi Pinheiro & Santana, 2016 in an unexplored stream on the northern slopes of the Chapada do Araripe, Ceará state, northeastern Brazil. A female specimen of K. attenboroughi was found in a small pool of Gameleira stream, district of Missão Nova, municipality of Missão Velha, in the southern part of the state. The new occurrence record extends the geographic distribution of K. attenboroughi by 7 km beyond the Sítio Cocos, its easternmost previously known occurrence; this expands the geographic range of this species to the southeast and indicates that its real distribution is still poorly known.

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DOI: 10.15560/18.2.341

Authors: Annawaty Annawaty, Nur Hidayah E. Lapasang, Puji Rahayu, Hairul Hairul, Fazlur Rahman I. Tadeko, Diky Dwiyanto

Abstract: The mainland of Sulawesi is well known for its high diversity of freshwater shrimps. However, many small islands surrounding Sulawesi have been neglected and have not been unexplored. Here, we report on the freshwater shrimps of the Banggai Archipelago, eastern Sulawesi, based on field collections between 2017 and 2019 on four islands, Peleng, Labobo, Bangkurung, and Banggai. Eleven species were found: Caridina brevidactyla J. Roux, 1920, Caridina brevicarpalis De Man, 1892, Caridina gracilipes De Man, 1892, Caridina gracilirostris De Man, 1892, Caridina serratirostris De Man, 1892, Caridina typus H. Milne Edwards, 1837, Caridina weberi De Man, 1892, Macrobrachium australe (Guérin-Méneville, 1838), Macrobrachium equidens (Dana, 1852), Macrobrachium lar (Fabricius, 1798), and Macrobrachium latidactylus (Thallwitz, 1891). One species, C. brevidactyla, is a newly recorded from Sulawesi. Knowledge of the diversity of the freshwater shrimp fauna can contribute to the conservation of species and their habitats.

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DOI: 10.15560/17.6.1461

Authors: Patrick F. Allison Jr., Tanya N. Khan, Destinee A. Davis, David A. Lieb, Zachary J. Loughman

Abstract: Recent investigations into the distributions of western Pennsylvania, USA, crayfishes have yielded 30 new occurrences of Lacunicambarus thomai (Jezerinac, 1993). The discovery of a population of L. thomai in Crawford County is the furthest north population in the state. Two populations of L. thomai were discovered outside of its historic range in Fayette and Somerset counties in southwestern Pennsylvania. These populations are in recreational fishing destinations and may have been introduced by bait bucket or construction fill. Additional surveys for Pennsylvania L. thomai should occur in areas lacking recent, thorough searches.

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DOI: 10.15560/17.3.759

Authors: Yusuke Fuke, Makoto Sasazuka

Abstract: The Hawaiian river shrimp Macrobrachium grandimanus (Randall, 1840) is an amphidromous brackish water prawn that inhabits the Hawaiian Islands (type locality), Ryukyu Islands, Melanesia (Fiji, New Caledonia), and Polynesia (Tonga). Here, we report a new record of this species from Guam, Micronesia. Two genetically and morphologically differentiated lineages of this species are known: the Hawaiian and the Ryukyu lineages. Morphological and mitochondrial DNA analyses revealed that the Guam population is closely related to the Ryukyu lineage.

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DOI: 10.15560/14.6.977

Authors: Vanessa Brito-Fonseca, Carlos Alencar, Savio Moraes, Valéria Vale, Fúlvio Freire

Abstract: The freshwater crab Trichodactylus fluviatilis Latreille, 1828 is recorded here for the first time, at an altitude above 1000 m a.s.l. Sampling was performed in the Grota stream in Campos das Vertentes, Minas Gerais state, Brazil. This new record extends the known altitudinal distribution to 1115 m a.s.l., which significantly contributes to understanding the conditioning limits and factors for this species’ distribution. Moreover, the occurrence of an ectosymbiont platyhelminth of the genus Temnocephala is also reported on the crabs collected.

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DOI: 10.15560/14.3.539

Authors: Alex Barbosa de Moraes, Daniele Cosme Soares de Moraes, Nielson Felix Caetano França, Jéssica Medeiros Malheiros, Fúlvio Aurélio de Morais Freire

Abstract: We present the first record of Ambidexter symmetricus Manning & Chace, 1971 for the state of Rio Grande do Norte, northeastern Brazil, filling a distribution gap of this species in the country. We confirm the preference of this species for seagrass meadows in the Curimataú river estuary. Lastly, a brief overview and an updated distribution map for the records of this species on the Brazilian coast are provided.

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DOI: 10.15560/14.2.479

Authors: Hiram Herrera-Barquín, Antonio Leija-Tristán, Susana Favela-Lara

Abstract: We provide an updated list of the caridean shrimp species from the southern region of the Laguna Madre, Tamaulipas, Mexico, along with a key for taxonomic identification. The survey was conducted in 3 sites during 3 temporal seasons. A total of 2,989 specimens were collected belonging to 12 species, 6 genera, and to the following 4 families: Alpheidae, Hippolytidae, Palaemonidae, and Processidae. Hippolytidae was the most abundant family, followed by Palaemonidae, Alpheidae, and Processidae. The hippolytid Hippolyte obliquimanus Dana, 1852, the palaemonids Palaemon floridanus Chace, 1942, and P. northropi (Rankin, 1898), and the alpheid Alpheus cf. packardii Kingsley, 1880 represent new records for the Laguna Madre and selected areas of the Gulf of Mexico.

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DOI: 10.15560/14.1.21

Authors: Maria Aparecida Laurindo dos Santos, Patrícia Madedo de Castro, Célio Magalhães

Abstract: This work provides an update on the species composition and distribution of freshwater shrimps from the state of Roraima, Brazil, based on material deposited in the Brazilian collections of the Instituto Nacional de Pesquisas da Amazônia (Manaus) and the Museu Integrado de Roraima (Boa Vista). A total of 12 species (1 Sergestidae, 3 Euryrhynchidae, and 8 Palaemonidae) are listed, of which 7 (Acetes paraguayensis Hansen, 1919; Euryrhynchus amazoniensis Tiefenbacher, 1978; E. burchelli Calman, 1907; E. wrzesniowskii Miers, 1877; Palaemon yuna Carvalho, Magalhães & Mantelatto, 2014; Pseudopalaemon chryseus Kensley & Walker, 1982; and Ps. gouldingi Kensley & Walker, 1982) are recorded for the first time from the state of Roraima. Maps of geographic distribution for all species known from the state are offered.

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DOI: 10.15560/13.5.429

Authors: Swapnil Gosavi, Jigneshkumar N. Trivedi, Dhruva J. Trivedi, Kauresh D. Vachhrajani

Abstract: Pilumnopeus convexus (Maccagno, 1936) (Pilumnidae) is recorded for the first time across the Indian coast. The species has so far been reported from coastal waters of the Red Sea, Pakistan and Persian Gulf. P. convexus can be easily distinguished from closely related species in having transversely hexagonal carapace, acute anterolateral teeth and tip of the male left gonopod curved to form a hook like structure. Possible explanations to the new record are discussed.

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DOI: 10.15560/13.4.379

Authors: Kele S.P. Andrade, Marina S.L.C. Araújo, Jorge L.S. Nunes

Abstract: Among the species belonging to the genus Macrobrachium Spence Bate, 1868, M. carcinus (Linnaeus, 1758) and M. olfersii (Wiegmann, 1836) are geographically widespread in the western Atlantic from the Gulf Coast to southern Brazil. We describe the current geographic distribution of M. carcinus and M. olfersii and include records of these species in the state of Maranhão, Brazil.

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DOI: 10.15560/13.2.2060

Authors: Alex Moraes, Daniele Soares de Moraes, Carlos Alencar, Willianilson Silva, Fúlvio Freire

Abstract: Potimirim potimirim (Müller, 1881), a species of coastal freshwater shrimp, is recorded for the first time from the state of Rio Grande do Norte, northeastern of Brazil, where it was collected in a small tributary of the Potengi River. This record extends the distribution of this species about 220 km north along Brazilian coast. New records, such as this, reinforce the need for greater research efforts in the northeastern freshwater ecosystems of Brazil to provide better understand the region’s biodiversity and establish better parameters for conservation actions.

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DOI: 10.15560/9.6.1510

Authors: Melina Alicia Velasco, María Ayelén Lutz, Igor Berkunsky, Federico Pablo Kacoliris, María Silvia López-Santoro

Abstract: The information about richness and distribution of the mammals that inhabit the highland grasslands of the Tandilia hills is scarce. The main objective of this work was to provide a list of the mammal species that inhabiting the protected area “La Poligonal” in the Tandilia hills. We report species of confirmed presence and also species of potential presence. We also identified the conservation status of each one. Our results showed a total of 39 mammal species, with 32 native species and seven exotic species. These species represent 35 genera, and are grouped in 17 families and seven orders. The most diverse order was Rodentia represented for 15 species. Two species in Argentina are catalogued as Near Threatened, one is vulnerable and the rest are catalogued as Least Concern. We hope this work lead to further research aimed at deeper understanding of the biodiversity of mammals of the Tandilia hills.

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