Navegando por Assunto "Gymnorhamphichthys"
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Item Acesso aberto (Open Access) Revisão taxonômica de Gymnorhamphichthys (Gymnotiformes, Rhamphichthyidae) com descrição de duas novas espécies(Universidade Federal do Pará, 2010) RAMOS, Cristiane do Socorro; WOSIACKI, Wolmar Benjamin; http://lattes.cnpq.br/0040413891328104A taxonomic revision of the genus Gymnorhamphichthys is presented, a diagnosis for the genus is modified and expanded, five nominal species are recognized, and two new species are described: Gymnorhamphichthys sp. n. 1, from rivers of Paraguay basin, is diagnosed by thin bars on the dorsal region of its body, bars long slender reaching or exceeding below the lateral line, number of bars 6-19, and by the low number of anal rays (141-177), among other characters; Gymnorhamphichthys sp. n. 2, from Amazon basin, is diagnosed by the presence of a dark mask on the head, wide rectangular-shaped bars, and by the high number of anal rays (185-260), among other characters. A dichotomous key to species is provided.