(Download) "Description of a New Softshell Turtle From the Southeastern United States" by Robert G. Webb ~ Book PDF Kindle ePub Free
eBook details
- Title: Description of a New Softshell Turtle From the Southeastern United States
- Author : Robert G. Webb
- Release Date : January 13, 2010
- Genre: Life Sciences,Books,Science & Nature,
- Pages : * pages
- Size : 159 KB
Description
This is a bio-geographical book. Examination of softshell turtles allied to Trionyx muticus from the southeastern United States discloses the presence of an undescribed subspecies inhabiting river systems of the Gulf Coast. The author is indebted to Mr. Roger Conant for constructive criticism of the manuscript. I am grateful also to many fellow students for assistance in field work or for other courtesies, especially William E. Brode, Franklin Sogandares-Bernal, Ernest A. Liner, Donald W. Tinkle, Paul K. Anderson, and John K. Greer. The photographs were provided through the cooperation of Roger and Isabelle Hunt Conant and John M. Legler. Collections from which specimens were obtained are as follows: TU (Tulane University), USNM (United States National Museum), MCZ (Museum of Comparative Zoology, Harvard College), CNHM (Chicago Natural History Museum), KU (Museum of Natural History, University of Kansas), UI (Museum of Natural History, University of Illinois). Measurements (in millimeters) were made with a Vernier caliper and a metal tape; those of the holotype were made to the nearest one-tenth millimeter. Plastral length was measured from the posterior edge of the plastron to the anteriormost edge of the ventral surface; other measurements were maximal. Depth of shell was taken only on hatchlings and an immature female. Hatchlings were arbitrarily designated as specimens having plastrons shorter than 44 mm; sex of all specimens except adult males was determined by dissection unless otherwise noted.