Category: Science - Biology
TAXONOMY 439 Family Trionychidae Bell, 1828 439 Genus _Trionyx_ Geoffroy, 1809 443 Variation 445 Secondary Sexual Variation 446 Ontogenetic Variation 449 Geographic Variation 453 Character Analysis 460 Composition of the Genus _Trionyx_ in North America 476 Artificial Key to N...
15586, Pecos River near jct. with Independence Creek; USNM 104240, Pecos River "near" Dryden. _Val Verde_: TTC 113, Pecos River. _Webb_: TNHC 19788, 42 mi. NW Laredo; USNM 10907...
2. Volume 13, No. 10, pp. 429-611, pls. 31-54, 24 figs.TAXONOMY 439 Family Trionychidae Bell, 1828 439 Genus _Trionyx_ Geoffroy, 1809 443 Variation 445 Secondary Sexual Variation 446 Ontogenetic Variation 449 Geographic Variation 45...
6. Volume I. Paris, 17 pp., 1 folding table, 651 pp., 1 folding1959. Origin and affinities of the fresh-water fish fauna of western North America. _In_ Zoogeography, edit. C. L. Hubbs. Amer. Assoc. Adv. Sci., Publ. No. 51, Washington, pp. 1...
5. Part III. Embryology of the turtle. Little, Brown and Co.,1948. Climatic changes and pre-white man. _In_ The Great Basin with emphasis on glacial and postglacial times. Bull. Univ. Utah, 38(20), Biol. Ser., 10(7):168-191, 1 fig., 1 tab...
3. mi. W Ojinaga), lack the orange on the side of the head; KU 51186 hasa plastral length of 8.0 centimeters, whereas the other two females have the same plastral length of 16.5 centimeters (larger than any male). Nineteen adult males, KU 51965-72,...
1. Volume 13, No. 10, pp. 429-611, pls. 31-54, 24 figs.