A new species of the catfish genus Trichomycterus (Teleostei: Siluriformes: Trichomycteridae) from the rio Paraná basin, southeastern Brazil

Vertebrate Zoology

article

Maria Anaïs Barbosa¹  Valter Azevedo-Santos² 

[1] Laboratório de Sistemática e Evolução de Peixes Teleósteos, Departamento de Zoologia, Universidade Federal do Rio de Janeiro, Cidade Universitária;Universidade Estadual Paulista “Júlio de Mesquita Filho”

关键词: Catfishes;    Loricarioidea;    Neotropical ichthyofauna;    new species;    systematics;    taxonomy;    Trichomycteridae;   

DOI  :  10.3897/vz.62.e31395

学科分类：社会科学、人文和艺术（综合）

来源: Pensoft

【 摘 要 】

A new species of the catfish genus Trichomycterus is described from tributaries of the upper rio Grande, rio Paraná basin, southeastern Brazil. Trichomycterus pirabitira new species is diagnosed by the morphology of the metapterygoid and the caudal fin, and number of vertebrae, branchiostegal rays and interopercular odontodes, relative position of the dorsal, anal, and pelvic fins, head length, and body width. The new species seems to be closely related to the species of the T. brasiliensis complex by having the oblique arrangement of opercular odontodes described for the group.

【 授权许可】

CC BY