C. Elliotii, Leidy, loc cit.

Diplocynodus.

D. subulatus, Cope. U. S. Geol. Survey, 1872, p. 613; Crocodilus subulatus, Pr. Am. Phil. Soc., 1872, p. 554.

D. polyodon, Cope. U. S. Geol. Survey, 1872, p. 614. (In his report to Lt. Wheeler, Prof. Cope says that "a single species, the D. subulatus, occurs" in the Bridger Basin, (p. 60). It is therefore probable that he has changed the D. polyodon, but we cannot find its synonym.)

LACERTILIA.

Saniva, Leidy. Pr. Ac. Nat. Sc., 1870, p. 124; U. S. Survey, 1870, p. 368; do., 1871, p. 370; Com. to Ext. Vert. Faun., p. 181.

S. ensidens, Leidy, loc. cit.

S. major, Leidy. Cont. to Ext. Vert. Faun., p. 182.

Chameleo.