Artículos de revistas
New species of Parotocinclus (Siluriformes: Loricariidae) from coastal drainages of Rio de Janeiro, southeastern Brazil
Fecha
2017-02-16Registro en:
Zootaxa. Auckland: Magnolia Press, v. 4232, n. 2, p. 260-270, 2017.
1175-5326
10.11646/zootaxa.4232.2.9
WOS:000394132200009
Autor
Universidade Estadual Paulista (Unesp)
Smithsonian Inst
Institución
Resumen
A new species of Parotocinclus is described from tributaries of rio Sao Joao, an Atlantic coastal river of Rio de Janeiro, southeastern Brazil. The new species is distinguished from its congeners by the possession of a triangular patch of dark pigmentation on the anterior portion of the dorsal-fin base, a fully developed adipose fin, complete exposure of the ventral surface of the pectoral girdle, and a distinctive pigmentation pattern of the caudal fin. The caudal fin has a hyaline background with a large black blotch covering its anterior portion, tapering irregularly through distal portions of the ventral lobe with a hyaline rounded area, and a small patch of dark pigmentation on distal portions of the dorsal lobe.