1893. Useful aquatic reptiles and batrachians of the United States.
_In_ The fisheries and fishery industries of the United States by G. B. Goode, Sect. I, Part II, pp. 137-162.
VAN DENBURGH, J.
1917. Concerning the origin of the soft-sh.e.l.led turtle, Aspidonectes californiana Rivers. Proc. Calif. Acad. Sci.
4th Ser., 7(2):33-35.
VAN DER SCHALIE, H.
1945. The value of mussel distribution in tracing stream confluence. Pap. Michigan Acad. Sci., Arts Letters, 1944, 30:355-73, 4 figs., September.
VINYARD, W. C.
1955. Epizoophytic algae from mollusks, turtles, and fish in Oklahoma. Proc. Oklahoma Acad. Sci., 1953, 34:63-65, January.
VIOSCA, P., JR.
1923. An ecological study of the cold-blooded vertebrates of southeastern Louisiana. Copeia, 1923(115):35-44, February 1.
1944. Distribution of certain cold-blooded animals in Louisiana in relationship to the geology and physiography of the state.
Proc. Louisiana Acad. Sci., 8:47-62, 3 figs., December.
WEBB, R. G.
1956. Size at s.e.xual maturity in the male softsh.e.l.l turtle, _Trionyx ferox emoryi_. Copeia, 1956(2):121-22, 1 fig., May 29.
1959. Description of a new softsh.e.l.l turtle from the southeastern United States. Univ. Kansas Publ. Mus. Nat. Hist., 11(9):517-25, 1 fig., 2 pls., August 14.
1960. Type and type locality of the Gulf Coast spiny softsh.e.l.l turtle, Trionyx spinifer asper (Aga.s.siz). Breviora, No.
129:1-8, 2 pls., December 21.
WEBB, R. G., and LEGLER, J. M.
1960. A new softsh.e.l.l turtle (genus Trionyx) from Coahuila, Mexico.
Univ. Kansas Sci. Bull., 40(2):21-30, 2 pls., April 20.
WEBSTER, E. B.
1936. A preliminary list of the reptiles and amphibians of Pottawatomie County, Oklahoma, near Shawnee. Proc. Oklahoma Acad. Sci., 1935, 16:20-22.
WEED, A. C.
1923. Notes on reptiles and batrachians of central Illinois.
Copeia, 1923(116):47-50, March 15.
WELTER, W. A., and CARR, K.
1939. Amphibians and reptiles of northeastern Kentucky. Copeia, 1939 (3):128-30, September 9.
WHEELER, G. C.
1947. The amphibians and reptiles of North Dakota. Amer. Midl.
Nat., 38(1):162-90, July.
WIED-NEUWIED, M. A. P.
* 1838. Reise in das innere Nord-America in den Jahren 1832 bis 1834. Reise von Bethlehem nach Pittsburgh uber die Alleghanys, vom 17. September bis zum 7. October. Coblenz, pp. 121-42 (from Carr, 1952:527).
1865. Verziechniss der reptilien welche auf einer reise im nordlichen America beobachtet wurden. Nova Acta Acad.
Leopold.--Carol., 32:viii + 146, 7 pls.
WILLIAMS, E. E.
1950. Variation and selection in the cervical central articulations of living turtles. Bull. Amer. Mus. Nat. Hist., 94(9):509-61, 20 figs., 10 tables, March 24.
WILLIAMS, E. E., and MCDOWELL, S. B.
1952. The plastron of soft-sh.e.l.led turtles (Testudinata, Trionychidae): a new interpretation. Jour. Morph., 90(2):263-75, 2 pls., March.
WILLIAMS, K. L.