North American Recent Soft-Shelled Turtles (Family Trionychidae)

by Robert G. Webb

Hudson, G. E.

1942. The amphibians and reptiles of Nebraska. Nebraska Conserv. Bull., No. 24:1-145, 20 pls., 32 maps, June.

Hughes, R. C., Baker, J. R., and Dawson, C. B.

1941. The tapeworms of reptiles. Part II. Host catalogue. Wasmann Collector, 4(3):97-104, April.

Hughes, R. C., Higginbotham, J. W., and Clary, J. W.

1941. The trematodes of reptiles. Part II. Host catalogue. Proc. Oklahoma Acad. Sci., 1940, 21:35-43.

Hummel, K.

1929. Die fossilen weichschildkröten (Trionychia). Eine morphologisch-systematische und stammesgeschichtliche studie. Geol. und Paläont. Abh. N. F., 16(5):357-487, 34 figs. Abstract by K. Staesche in Neu. Jahrb. Min., Geol. und Paläont., Referate III, 1929, pp. 768-72.

Hurter, J.

1911. Herpetology of Missouri. Trans. Acad. Sci. St. Louis, 20(5):59-274, 7 pls., July 28.