© W. J. E. M. Costa

A new member of the genus Nematocharax from Bahia state, eastern Brazil is just the second member of the genus known to date. Continue reading »

Hyphessobrycon peugeoti © Ingenito et al.

A new tetra of the genus Hyphessobrycon has been described from affluents of the middle rio Juruena, itself a tributary in the upper rio Tapajós basin, Mato Grosso State, Brazil. Continue reading »

Live specimen of E. altipinnis. © Netto-Ferreira et al.

A new miniature characid genus and species from the rio Curuá at Serra do Cachimbo, Pará state, Brazil. has been described in the open access journal PLoS ONE.

Erythrocharax altipinnis is the only known member of the new genus and can be told apart from related groupings by having the pelvic bones firmly attached through the horizontal isquiatic processes. Continue reading »