Suppression of the tapeworm order Pseudophyllidea (Platyhelminthes: Eucestoda) and the proposal of two new orders, Bothriocephalidea and Diphyllobothriidea.
The total amount of character loss is not distributed among the three major cercomerian groups (the Digenea, Monogenea, and Eucestoda) in proportion to the amount of character change in each group ([X.sup.2] = 8.95, P < 0.025; Table 2).
The effects of Anonchocephalus chilensis Riggenbach (Eucestoda: Bothriocephalidea) on infracommunity patterns in Genypterus maculatus Tschudi (Osteichthyes: Ophidiidae).
(Eucestoda: Tetraphyllidea: Triloculariidae) in Urotrygon chilensis (Chondrichthyes: Myliobatiformes: Urolophidae) from the Gulf of Nicoya, Costa Rica.
(Eucestoda: Tetraphyllidea: Onchobothriidae) in Aetobatus narinari (Euphrasen) (Chodrichthyes: Myliobatiformes: Myliobatidae) from the Gulf of Nicoya, Costa Rica.
A new tapeworm from the Amazon, Amazotaenia yvettae n.gen., n.sp., (Eucestoda: Proteocephalidea) from the siluriform fishes Brachyplatystoma filamentosum and B.
Systematic status of Manaosia bracodemoca Woodland, 1935 and Paramonticellia itaipuensis Pavanelli et Rego, 1991 (Eucestoda: Proteocephalidea), parasites of Sorubim lima (Siluriformes: Pimelodidae) from South America.
Proteocephalidae et Monticelliidae (Eucestoda: Proteocephalidea) parasites de poissons d'eau douce au Paraguay, avec descriptions d'un genre et de dix especes nouvelles.