Hyman, L.H.Galtsoff, Paul S.Gulf of Mexico, its origin, waters, and marine life. Fishery Bulletin of the Fish and Wildlife Service2010-02-152010-02-151954http://hdl.handle.net/1969.3/19215pgs. 301-302The author briefly summarizes the scant information available on free- living turbellarian flatworms occurring in the Gulf of Mexico.flatwormsmarine invertebratestaxonomygeographical distributionecological distributionChapter