68 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



4117. Crocodylus heterodon (Cope). Plesiotype. 



Dermal scuta. Bridger (Eocene). Upper Green River, 

 W^'oming. 



Cope, Rept. U. S. Geol. Surv. Terr., Ill, 1884, p. 164, pi. 23a, figs. 

 19-22. 



4116. Crocodylus heterodon (Cope). Plesiotype. 



Part of right maxillary, lumbar vertebra, caudal vertebra, 

 shaft of femur, and dermal .scute. Bridger (Eocene). 

 Near lyaclede, Wyoming. 



Cope, Rept. U. S. Geol. Surv. Terr., Ill, 1884, p. 164, pi. 23a, figs. 

 14-18. 



2624. Crocodylus ? liodon Marsh. Plesiotype. 



Axis, vertebrae, parts of the quadrate and parietal of two 



individuals. Wasatch (Eocene). Gallinas Creek, New 

 Mexico. 



Cope, Rept. U. S. Geogr. Surv. W. looth Merid., IV, Pt. II, 1807, 

 p. 67, pi. 31, figs. 18-23. 



41 12. Crocodylus polyodon (Cope). I^ype. 



Cope, Amer. Nat., XVI, 1882, p. 981; Rept. U. S. Geol. Surv. Terr., 

 Ill, 1884, p. 154, pi. 23a, figs. 2, 3. 



See Diplocy nodus polyodon. 



41 13. Crocodylus subulatus Cope. Type. 



Dentary, articular region of the right ramus, fragment of 

 premaxillary, cervical, and dorsal vertebrae. Bridger 

 (Eocene). Upper Green River, Wyoming. 



Cope, Pal. Bull. No. 9, 1872, p. i; Proc. Amer. Phil. Soc. XII, 

 1872, p. 544 (as Crocodilus (Ichthyosuchus) subulatus); Rept. 

 U. S. Geol. Surv. Terr., Ill, 18S4, p. 152, pi. 23a, figs. 4-9. 



See Diplocynodus subulatus. 



41 18. Crocodylus sulciferus Cope. Type. 



Tooth. Bridger ("Eocene). Bluffs of Upper Green River, 

 Wyoming. 



Cope, Pal. Bull. No. 9, 1872, p. i; Proc. Amer. Phil. Soc, XII, 

 1872, p. 555; Rept. U. S. G^ol. Surv. Terr., Ill, 1884, p. 152, 

 pi. 23a, fig. 23. 



2593. Crocodylus wheelerii Cope. ^ype. 



Portions of parietal, frontal, nasal, premaxillary, quadrate, 

 angular, surangular, and fragment of mandible. Eocene. 

 Gallinas Creek, New Mexico. 



Cope, Syst. Cat. Vert. Eocene New Mexico, 1875, p. 33; Rept. U. S. 

 Geogr. Surv. W. looth Merid., IV, Pt. II, 1877, p. 64, pi. 31, 

 figs. 1-5. 



931. Crocodylus sp. undet. ? 



First caudal vertebra. Eocene. Eittle Sandy River, 

 Wyoming. 

 Iveidy, Rept. U. S. Geol. Surv. Terr., I, 1873, p. 133, pi. 8, fig. 3. 



