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Acta Amazonica

Print version ISSN 0044-5967On-line version ISSN 1809-4392

Acta Amaz. vol.23 no.2-3 Manaus  1993

http://dx.doi.org/10.1590/1809-43921993233269 

ZOOLOGIA

Myracetyma piraya SP. NOV. (COPEPODA, ERGASILIDAE) DAS BRÂNQUIAS DE Pygocentrus nattereri (KNER, 1860) (CHARACIFORMES: SERRASALMIDAE) DA AMAZÔNIA BRASILEIRA

Myraticetyma piraya sp. nov. (Copepoda. Ergasilidae) from the gill of Pygocentras nattereri (Kner. I860) (Charaeiformes Serrasalmidae) from the Brazilian Amazon

José Celso O. MALTA 1  

1Instituto Nacional de Pesquisas da Amazônia, Coordenação de Pesquisas em Biologia Aquática, Caixa Postal 478, 69011-970, Manaus, Amazonas, Brasil.

RESUMO

Myracetyma piraya sp. nov. é proposta. Os espécimens foram coletados dos filamentos branquiais de Pygocentrus nattereri (KNER, I860). A espécie nova difere das outras, no tamanho, no formato do cefalotórax, nas extensões cuticulares dei antena e no formato e ornamentações dos ramos das pernas.

Palavras-Chave: Copepoda; Ergasilidae; espécie-nova; Myracetyma; Amazônia

ABSTRACT

Myracetyma piraya sp. nov. is proposed. The specimens were collected from the gill filaments of Pygocentrus naltercri (Kner. 1860). The new species differs from the others, in size, and shape of the cephalotfiorax. Also, in the cuticular extensions of the antenna and the rami of the legs have different shapes and ornamentations.

Key words: Copepoda; Ergasilidae; new specie; Myracetyma; Amazônia

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