Soft-shelled Turtles, by Robert G.
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   � [Full title: North American Recent Soft-shelled Turtles (Family
   ��������������� Trionychidae)]
   � [Link: [1]http://www.gutenberg.org/4/0/0/0/40005 ]
   � [Files: 40005.txt; 40005-8.txt; 40005-h.htm]
   Thanks to Chris Curnow, Tom Cosmas, Joseph Cooper, page
   images courtesy of The Internet Archive and the Online
   Distributed Proofreading Team at [2]http://www.pgdp.net
   Many thanks
   Janet

References

   1. http://www.gutenberg.org/4/0/0/0/40005
   2. http://www.pgdp.net/