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 …

The family Potamotrygonidae was described by Garman (1877) to include freshwater
stingrays restricted to the South American continent. This is the most speciose extant group …

The body of an elasmobranch offers a diversity of sites that can be, and often are, occupied
by other animals. Indeed, essentially no organ system of elasmobranchs has escaped the …

Helminths of the spiral intestine of neotropical freshwater stingrays (Potamotrygonidae) were
examined in Peru for the first time. The stingrays examined for helminths included …

The Neotropical freshwater stingrays of Potamotrygon genus present a unique and complex
natural history and biogeographical pattern that can be traced to a marine origin and the …

Peruanocotyle n. gen. is proposed to accommodate Peruanocotyle chisholmae n.
sp.(Monogenea: Monocotylidae). The new species is a gill parasite of the diamond stingray …

A list of 135 monogenean species is presented updating the papers published by Kohn &
Cohen (1989) and Kohn & Paiva (2000), increasing to 658 the number of known species in …

The marine-derived stingrays of Potamotrygonidae, endemic to South American river
systems, host an interesting parasite fauna equally related to marine lineages. Among those …

Phylogenetic analyses of partial sequences of 18S and 28S rDNA of some monogenoids,
including monocotylids and a specimen of Loimosina sp. collected from a hammerhead …

Denarycotyle gardneri n. gen., n. sp.(Monogenea: Monocotylidae) is described from the gills
of the stingray, Rhinoptera steindachneri (Myliobatidae), collected in marine waters off …