An annotated checklist of the freshwater Tricladida of the Nearctic and Neotropical Regions

Abstract

Sixty-three valid species of freshwater triclads (Platyhelminthes, Turbellaria), representing 16 genera, are listed from North and South America. Comments on nomenclatural problems or changes of taxonomic status are included when necessary. Worldwide distributional data are provided at the generic level, but at the specific level only the Western hemisphere is considered. The taxonomic status of four incompletely described species is also briefly discussed. A bibliography of 84 references directs users of the checklist to the most important recent papers dealing with the taxonomy and distribution of the individual species, and provides a key to the older literature. New records for Canada, involving nine species, are given preliminary mention.