Among the specimens of the Cichlidae family collected in the central region of the State of Rio Grande do Sul (Brazil), the initial studies were done in genera represented by orbicular forms, which comprise: Aequidens, Cichlaurus and Geophagus. Of these genera, four species were found in different proportions: Aequidens portalegrensis, Cichlaurus facetus, Geophagus brasiliensis and Geophagus gymnogenys.
O presente trabalho visa determinar as diferentes espécies da ofiofauna na área de influência da barragem hidroelétrica de Dona Francisca, localizada no município de Agudo, Rio Grande do Sul, no período de abril a novembro de 1988. Constatou-se 16 espécies de serpentes, distribuídas em 10 gêneros, sendo 4 peçonhentas e 12 não peçonhentas.
A survey of the ichthyologic fauna of the Ibicuí Mirim River, RS, Brazil, was carried out at four different spots resulting in the collection of 3.388 fish specimens that were classified in eight orders, twenty four families, fifty nine genera and eighty one species.
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