A dorsal fold in Gymnura micrura (Bloch and Scheneider, 1801) (Chondrichthyes: Gymnuridae)

by Jorge Luiz Silva Nunes, Nivaldo Magalhães Piorski
Published 2009-04-01

Taxonomic status of Aphyocharax avary Fowler, 1913, Aphyocharax pusillus Günther, 1868 and Chirodon alburnus Günther, 1869 (Characiformes, Characidae)

by Pâmella Silva de Brito, Erick Cristofore Guimarães, Axel Makay Katz, Nivaldo Magalhães Piorski, Felipe Polivanov Ottoni
Published 2018-08-01

Alimentação e ecomorfologia de duas espécies de piranhas (Characiformes: Characidae) do lago de Viana, estado do Maranhão, Brasil Feeding and ecomorphology of two species of piranh...

by Nivaldo Magalhães Piorski, José de Ribamar Lima Alves, Monica Rejany Barros Machado, Maria Marlucia Ferreira Correia
Published 2005-01-01