49. KINOSTERNON 967 
closed against the carapace. The plastral plates are separated 
from the marginals. There are two supracaudal plates. 
Gular single. The tail is short, with a terminal nail. 
Synopsis OF SPECIES 
a.—Neck mottled with dark and light; shell more elongate, 
less rounded; barbules on neck more numerous; shell 
usually olive; upper border of ninth marginal nearly 
straight. 
K. sonoriense.—p. 967. 
a.—Neck less mottled, usually yellow without dark mark- 
ings below; shell less elongate, more rounded; barbules 
on neck fewer; shell usually yellowish; upper border 
of ninth marginal much elevated anteriorly. 
K. flavescens.—p. 970. 
222. Kinosternon sonoriense Le Conte 
Sonoran Mup Turre 
Plates 120 and 121 
Kinosternum sonoriense Le Conte, Proc. Acad. Nat. Sci. Phila., 1854, 
p- 184 (type locality, Tucson, Arizona). 
Thyrosternum sonoriense Acassiz, Contrib. Nat. Hist. U. S., Vol. I, 
1857, p. 428, Vol. II, pl. V, figs. 8-11; Bairp, U. S. Mex. Bound. 
Surv., Vol. II, 1857, Rept., p. 3. 
Platythyra flavescens AGassiz, Contributions Nat. Hist. U. S., Vol. I, 
1857, p- 430 (part), Vol. II, pl. V, figs. 12-15; Barro, U. S. Mex. 
Bound. Surv., Vol. I, 1859, Rept., p. 3; Cooper, Cal. Acad. Sci., 
Vol. IV, 1870, p. 66. 
Kinosternum henrict Le Conte, Proc. Acad. Nat. Sci. Phila., 1857, 
p- 4 (type locality, New Mexico); Corr, Bull. U.S. Nat. Mus., 
No. '17,, 1880,, p-, 13° :(?). 
Cinosternum henrici Core, Bull. U. S. Nat. Mus., No. 1, 1875, p. 533 
Yarrow, Surv. W. rooth Merid., Vol. V, 1875, p. 583, pl. XVI, 
figs., 1-3; Cours, Surv. W. rooth Merid., Vol. V, 1875, p. 590; 
True, Bull. U.S. Nat. Mus., No. 24, 1883, p. 31; BouLENGER, Cat. 
Chelonians Brit. Mus., 1889, p. 40; Dirmars, Reptile Book, 1997, 
p- 26, pl. 11, fig. 2; Srrecker, Baylor Bulletin, Vol. XVIII, No. 4, 
1915, p. 10 (?). 
