Artigo
Two new species of Pseudancistrus (Siluriformes, Loricariidae) from the Amazon basin, northern Brazil
Registro en:
Zookeys. Sofia: Pensoft Publ, n. 482, p. 21-34, 2015.
1313-2989
10.3897/zookeys.482.6909
WOS:000349370200003
WOS000349370200003.pdf
Autor
Silva, Gabriel S. C. [UNESP]
Roxo, Fabio F. [UNESP]
Oliveira, Claudio [UNESP]
Resumen
Two new species of Pseudancistrus, a genus diagnosed by non-evertible cheek plates and hypertrophied odontodes along the snout margin, are described from two drainages of the Brazilian Shield: P. kayabi from the rio Teles Pires (rio Tapajos basin) and P. asurini from the rio Xingu. The new species are distinguished from congeners (P. barbatus, P. corantijniensis, P. depressus, P. nigrescens, P. reus, and P. zawadzkii) by the coloration pattern. Pseudancistrus kayabi has dark bars on the dorsal and caudal fins which are similar to that of P. reus from the Caroni River, Venezuela. Pseudancistrus asurini is unique among Pseudancistrus in having whitish tips of the dorsal and caudal fins in juveniles to medium-sized adults. Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Universidade Estadual Paulista (UNESP), IB, Departamento de Morfologia, Laboratório de Biologia e Genética de Peixes, BR-18618970 Sao Paulo, Brazil Universidade Estadual Paulista (UNESP), IB, Departamento de Morfologia, Laboratório de Biologia e Genética de Peixes, BR-18618970 Sao Paulo, Brazil FAPESP: 2014/05051-5 FAPESP: 2012/01622-2 CNPq: 441347/2014-2