Morphology and genetics reveal the occurrence of <em>Girardinus falcatus</em> (Eigenmann, 1903) (Cyprinodontiformes, Poeciliidae) in eastern Cuba
Check List 13(6): 1059-1065, doi: 10.15560/13.6.1059
Morphology and genetics reveal the occurrence of Girardinus falcatus (Eigenmann, 1903) (Cyprinodontiformes, Poeciliidae) in eastern Cuba
expand article infoSheila Rodríguez-Machado, José L. Ponce de León§, Didier Casane|, Erik García-Machado
‡ Instituto de Oceanología, La Habana, Cuba§ Cuban Society of Zoology, La Habana, Cuba| Université Paris-Sud, Gif-sur-Yvette, France¶ Universidad de La Habana, La Habana, Cuba
Open Access
Abstract
Girardinus is a Cuban genus of poeciliid fishes. It comprises 7 freshwater-restricted species most of them inhabiting specific ecosystems or regions within the island. Girardinus falcatus, the Gold-bellied Topminnow, is common in lowlands of western and central Cuba but thought not to be present in the East. Herein we provide the first wellsupported evidence of the occurrence of this species in eastern Cuba. Sixteen specimens were collected and identified primarily by body shape and coloration, and corroborated by gonopodial morphology and by sequences of the mitochondrial gene cytochrome b.
Keywords
Cytochrome b; freshwater ecosystems; Gold-belly Topminnow; gonopodium; range extension