A new genus of Hypopopomatinae armored catfish is described from the northern portions of
South America, namely the Amazon, Orinoco and Guianan coastal drainages. The new …

The catshark genus Scyliorhinus belongs to the family Scyliorhinidae, the most diverse
family of sharks, and currently presents 16 valid species according to most modern …

A new Southwestern Atlantic species of Parmaturus, P. angelae, new species, is described
from two specimens captured off Brazil. It is distinguished from congeners by the following …

Pareiorhaphis hystrix is a widely distributed species, occurring in the upper and middle
Uruguay River and in the Taquari River basin, Patos Lagoon system, southern Brazil …

Epactionotus species are known for inhabiting the rocky‐bottom stretches of fast‐flowing
rivers in a limited geographic area along the Atlantic coast of southern Brazil. These species …

Color patterns of the body are commonly used to distinguish and identify species of
Trichomycterus. Therefore, variation in color pattern in a population can cause doubt …

Comprising more than 100 species, Crenicichlina encompasses 20% of the taxonomic
diversity of Neotropical cichlids and is widely distributed throughout Brazilian watersheds. A …

A taxonomic revision of Sturisomatichthys is presented. A total of 383 specimens including
both type and non-type specimens of all valid species were examined. Sturisomatichthys …

Moenkhausia cotinho is redescribed based on the examination of meristic and
morphometric data and external morphological characters of specimens from the Amazon …

This work provides an update on the species composition and distribution of freshwater
shrimps from the state of Roraima, Brazil, based on material deposited in the Brazilian …