Os crustáceos parásitos de peixes da Amazonia Brasileira. I-Ergasilus bryconis n. sp. (Copepoda: Cyclopoidea) da matrinchã (Brycon melanopterus (Cope))

Abstract

ResumoUma nova espécie de crustáceo -Ergasilus bry· conis n. sp. -é descrita parasitando um peixe amazô-co chamado matrinchã [ Characidae: Brycon melanopterus (Cope)). A nova espécie distingue-se das demais conhecidas por ter o endopódito IV com dois segmentos e um único espinho na primeira maxila.

The Parasitic Crustaceans of Fishes From the Brazilian Amazon 8 Acusicola Lycengraulidis N. Sp. (Copepoda: Cyclopidea) From Lycengraulis Grossidens Cuvier

“…They were killed by imersion in 70% alcohol and afterwards removed from the filaments by dissec tion. The methods used in their prepara tion and study were those explained in Thatcher (1981) and Thatcher & Rober tson (1982). Color determinations were made with reference to Smithe (1974).…”

“…Although Johnson and Rogers (1972) and Kabata (1979) rejected the genus and left both these species in Ergasilus, Thatcher (1984) recognized and emended Acusico la and included a third species, A. tucunarense Thatcher, 1984. The latter author also proposed the subfamily Acusicolinae which he defined as those ergasilids ha ving a 5-segmented antennule and a 4-segmented latching antenna having a grooved third segment for reception of the opposite claw.…”

Patologia De Peixes Da Amazônia Brasileira, Alterações Histológicas Em Brânquias Provocadas Por Ergasilus, Brasergasilus E Acusicola (Crustácea: Cyclopoida: Ergasilidae)

“…Os estudos dos ergasilídeos que estão sendo realizados no Instituto Nacional de Pesquisas da Amazônia, Manaus, vem revelando a presença de várias espécies novas (Thatcher, 1981a(Thatcher, , 1981bThatcher & Robertson, 1982;e Thatcher & Boeger (s. d Thatcher &Va-rella (1980).…”