Vertebrate Zoology 63(3): 269-275, doi:
Description of two new species of the catfish genus Trichomycterus (Teleostei: Siluriformes: Trichomycteridae) from the coastal river basins, southeastern Brazil
Maria Anaïs BarbosaCorresponding author: Maria Barbosa ( anaisbarbosa@yahoo.com.br ) © Maria Barbosa. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Citation:
Barbosa MA (2013) Description of two new species of the catfish genus Trichomycterus (Teleostei: Siluriformes: Trichomycteridae) from the coastal river basins, southeastern Brazil. Vertebrate Zoology 63(3): 269-275 |  |
Abstract
Two new species of catfish genus Trichomycterus are described from southeastern Brazil. Trichomycterus mimosensis new species is diagnosed by the number of pectoral-fin rays, the first pectoral-fin ray prolonged as a filament, the length of the pectoral-fin filament, the length of the dorsal-fin base, the morphology of the metapterygoid, the length of the maxillary barbel, the morphology of the hypobranchial 1, the width and depth of the head, the depth of the caudal peduncle, the shape of the head and caudal fin, and the colour pattern. Trichomycterus gasparinii new species is diagnosed by the number of pectoral-fin rays, the length of the pectoral-fin filament, the width of the head, the depth of the caudal peduncle, the arrangement of the odontodes on opercular path, the morphology of the metapterygoid and the caudal-fin shape.
Keywords
Loricarioidea, Catfishes, Trichomycterinae, Neotropical ichthyofauna, systematics, taxonomy.