The South American subcontinent supports one of the world's most diverse and
commercially very important ichthyofauna. In this context, the study of South American fish …

A checklist of records of aspidogastrean trematodes (Aspidogastrea) is provided on the
basis of a comprehensive survey of the literature since 1826, when the first aspidogastrean …

Our hypothesis is that annual and seasonal variations influence the structure of component
communities and diversity of metazoan parasites from Colomesus asellus from the Amazon …

The puffer fish Colomesus psittacus, is not commercialized on Marajó Island. They are
captured as bycacth and discarded dead in the environment in artisanal fisheries that occur …

The genus Cotylophoron belongs to the Paramphistomidae family and its definitive hosts are
ruminants in general. This work describes the presence of a new species of the gender, a …

This is the first comprehensive book on the biology and ecology of pufferfish, also known as
blowfish, swellfish, and globefish. Covering 197 species of pufferfish recorded so far from …

Egg structure and early embryonic development of the aspidogastrean, Rohdella
amazonica, a basal trematode, were studied by transmission electron microscopy (TEM) to …

Developmental ultrastructure of late embryos and cotylocidium larval morphogenesis of
Rohdella amazonic a, an aspidogastrean parasite of fish, were studied to reveal the …

The trematodes are parasites of the several vertebrates including amphibians, however the
knowledge about of the taxonomy these parasites is still confuse. The trematode …

The following chapters deal with animals, which are summarized under the trivial name
worms (Greek: helminths), although (except for their outer appearance) they differ …