Project Gutenberg 2012-06-16 Public domain in the USA. 402 Webb, Robert G. 62063091 North American Recent Soft-Shelled Turtles (Family Trionychidae) 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 "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.) file:///public/vhost/g/gutenberg/html/files/40005/40005-h/images/cover.jpg en Soft-shelled turtles QH Text Browsing: Nature/Gardening/Animals Browsing: Science - Genetics/Biology/Evolution 721568 721554 2024-09-17T03:32:12.006461 2023-09-17T11:48:21.754371 text/html text/html 721779 2012-06-16T16:20:08 text/html; charset=iso-8859-1 5433593 2012-06-16T16:20:26 text/html; charset=iso-8859-1 application/zip 4819408 2024-09-17T03:32:33.380330 application/epub+zip 4830388 2024-09-17T03:32:17.699651 application/epub+zip 256310 2024-09-17T03:32:12.870450 application/epub+zip 3761187 2024-09-17T03:32:40.549344 application/x-mobipocket-ebook 3719849 2024-09-17T03:32:28.595432 application/x-mobipocket-ebook 447009 2022-09-18T10:16:25.923525 application/x-mobipocket-ebook 613967 613801 2024-09-17T03:32:09.213454 2023-09-17T11:48:18.907349 text/plain; charset=us-ascii text/plain 613447 2012-06-16T16:20:08 text/plain; charset=iso-8859-1 201615 2012-06-16T16:20:24 text/plain; charset=iso-8859-1 application/zip 613528 2012-06-16T16:20:08 text/plain; charset=us-ascii 201394 2012-06-16T16:20:24 text/plain; charset=us-ascii application/zip 19673 2024-09-17T03:32:40.725299 application/rdf+xml 10742 2024-09-17T03:32:13.039446 image/jpeg 2160 2024-09-17T03:32:12.954442 image/jpeg 5434110 2024-09-17T03:32:12.190708 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://www.gutenberg.org/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog