Two new species of the genus Crenicichla Heckel, 1840 from the upper rio Uruguay drainage (Perciformes: Cichlidae)
Carlos A. S. de Lucena
5(4)
Reproductive biology of Rhaphiodon vulpinus (Ostariophysi: Cynodontidae) in the Tocantins River Basin, Brazil
Andréa L. Neuberger, Elineide E. Marques, Carlos S. Agostinho, and Rafael J. de Oliveira
Parasitic castration, growth, and sex steroids in the freshwater bonefish Cyphocharax gilbert (Curimatidae) infested by Riggia paranensis (Cymothoidea)
Neuza R. W. Lima , Juliana de S.Azevedo, Leonardo G. da Silva, and Marilvia Dansa-Petretski
Comparison of spermiogenesis in the externally fertilizing Hemigrammus erythrozonus and the inseminating Corynopoma riisei (Teleostei: Characiformes: Characidae)
Anna Pecio, John R. Burns and Stanley H. Weitzman
A new species of sexually dimorphic Pareiorhaphis Miranda Ribeiro, 1918 (Siluriformes: Loricariidae) from the rio Doce basin, Brazil
Edson H. L. Pereira, Fábio Vieira and Roberto E. Reis
A new species of Hypostomus Lacépède, 1803 (Siluriformes: Loricariidae) from the upper rio Paraná basin, Southern Brazil
Fernando C. Jerep, Oscar A. Shibatta and Cláudio H. Zawadzki