Siluriformes
Auchenipteridae
Ageneiosus inermis (Linnaeus) Quadrigyrus sp. Acanthocephala fam. gen. sp.
Callichthyidae
Corydoras paleatus (Jenyns)
Neoechinorhynchus (Neoechinorhynchus) villoldoi
Polymorphus sp.
Diplomystidae
Olivaichthys viedmensis (MacDonagh)
Acanthocephalus tumescens
Pomphorhynchus patagonicus
Doradidae
Oxydoras kneri Bleeker
Paracavisoma impudica
Pterodoras granulosus (Valenciennes)
Neoechinorhynchus (Neoechinorhynchus) pterodoridis
Acanthocephala fam. gen. sp.
Loricariidae
Hypostomus commersonii Valenciennes
Gorytocephalus cf. elongorchis
Pimelodidae
Bergiaria platana (Steindachner)
Pomphorhynchus sphaericus
Luciopimelodus pati (Valenciennes)
Pomphorhynchus sphaericus
Quadrigyrus sp.
Acanthocephala fam. gen. sp.
Megalonema platanum (Günther)
Quadrigyrus sp.
Parapimelodus valenciennis (Lütken)
Pomphorhynchus sphaericus
Pimelodus albicans (Valenciennes)
Neoechinorhynchus (Neoechinorhynchus) pimelodi
Pomphorhynchus bulbocolli (see note in the Acanthocephala-host list for this identification) Pomphorhynchus sphaericus
Quadrigyrus sp.
Acanthocephala fam. gen. sp.
Pimelodus argenteus Perugia
Neoechinorhynchus (Neoechinorhynchus) pimelodi
Acanthocephala fam. gen. sp.
Pimelodus maculatus Lacepède
Neoechinorhynchus (Neoechinorhynchus) pimelodi
Paracavisoma impudica
Pomphorhynchus sphaericus
Quadrigyrus machadoi
Quadrigyrus sp.
Pseudoplatystoma fasciatum (Linnaeus)
Quadrigyrus sp.
Acanthocephala fam. gen. sp.
Sorubim lima (Bloch & Schneider)
Quadrigyrus sp.