Tremátodos de peces de Costa Rica. I. Sobre dos especies del género Crassicutis Manter,1936 (Lepocreadiidae Nicoll, 1914) del intestino de Cichlasoma sp.

Abstract

Crassicutis cichlasoma Manter, 1936 is redescribed from four specimens from Guanacaste, Costa Rica, and a new species, Crassicutis opisthoseminis, is described from the holotype; it differs from all other species in the genus in the position of the seminal receptacle and testes, in the lateral position of the genital pore, the terminal position of the oral sucker, and the reduced posttesticular region.