Webb, Robert G. (Robert Gravem) 1927-2018 creator text utu 2012 monographic en 1 online resource : multiple file formats "North American Recent Soft-Shelled Turtles (Family Trionychidae)" by Robert G. Webb is a scientific publication written in the early 1960s. This work provides a comprehensive examination of the genus "Trionyx", which includes various species and subspecies of soft-shelled turtles found in North America. The book delves into their taxonomy, natural history, collecting methods, and evolutionary relationships, aimed at professional biologists and herpetologists. The opening of the text introduces the author’s motivation to study soft-shelled turtles, sparked by his observations while collecting specimens from river systems in the Gulf Coast. Webb raises questions about the geographical distribution and variations among turtle populations, aiming to understand how historical changes in aquatic habitats have influenced the species. He also outlines the methods and materials used in his research, preparing readers for a systematic account of the turtles, their habitats, behaviors, and the significance of their study in the broader context of river ecology and evolution. (This is an automatically generated summary.) Release date is 2012-06-16 Produced by Chris Curnow, Tom Cosmas, Joseph Cooper, page images courtesy of The Internet Archive and the Online Distributed Proofreading Team at http://www.pgdp.net Original publication data not identified Soft-shelled turtles QH Original publication data not identified 62063091 https://www.gutenberg.org/ebooks/40005 https://www.gutenberg.org/ebooks/40005 UtSlPG 260607 20260610133921.0 40005