02211cam a22003133u 450000100060000000300070000600500170001300600020003000700050003200800410003701000130007804000110009104100170010205000070011910000490012624500700017526400510024530000470029633600260034333700260036933800360039550000310043150801700046252011350063253400450176765300250181285600430183799900170188040005UtSlPG20260610133921.0mcr n260607r2012||||utu|||||o|||||||||||||| d  a62063091  aUtSlPG 7aen2iso639-1 4aQH1 aWebb, Robert G.q(Robert Gravem),d1927-201810aNorth American Recent Soft-Shelled Turtles (Family  Trionychidae) 1aSalt Lake City, UT :bProject Gutenberg,c2012  a1 online resource :bmultiple file formats  atextbtxt2rdacontent  acomputerbc2rdamedia  aonline resourcebcr2rdacarrier  aRelease date is 2012-06-16  aProduced by Chris Curnow, Tom Cosmas, Joseph Cooper, page
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Distributed Proofreading Team at http://www.pgdp.net  a"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.)  nOriginal publication data not identified  aSoft-shelled turtles40uhttps://www.gutenberg.org/ebooks/40005  c80844d80844