74 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



41. Liodon dyspelor Cope. Type. 



Vertebrae and limb bones. Niobrara (Cretaceous). Fort 

 McRae, New Mexico. 



Cope, Proc. Acad. Nat. Sci. Phila., 1870, p. 132; Rept. U. S. Geol. 

 Surv. Terr., II, 1875, p. 167, pi. 31, fig. 5. 



= Tylosaurus dyspelor. 



2152. Metoposaurus fraasi Lucas. Type. 



Episternum. Triassic. Five miles east of Tanners Cross- 

 ing, Little Colorado River, Arizona. 



Lucas, Proc. U. S. Nat. Mus., XXVII, 1904, p. 194, pi. 3. 



5384. Morosaurus agilis Marsh. Type. 



Posterior half of skull, atlas, axis, and third cervical verte- 

 bra. Morrison (Jurassic). Canyon City, Colorado. 



Marsh, Amer. Journ. Sci. (3), XXXVII, 1889, p. 334, text fig. 3; 

 Sixteenth Ann. Rept. U. S. Geol. Surv. for 1894-5, Pt. 1, 1896, 

 pi. 30, fig. 1. 



5369. Morosaurus agilis Marsh. Plesiotypes. 



5371. (1) Right hind foot; (2) right fore foot associated with 



radius and ulna. Morrison (Jurassic). Canyon City, 



Colorado. 



Marsh, Sixteenth Ann. Rept. U. S. Geol. Surv. for 1894-5, Pt. 1, 

 1896, p. 182, pi. 37, (1) fig. 2, (2) fig. 1. 



873. Mosasaurus sp. undet. 



Part of upper jaw. Cretaceous. Marion, Perry County, 

 Alabama. 



Leidy, Smithsonian Contrib.toKnowl.,XIV, 1865, p. 72, pi. 19, fig. 7. 



4129. Notomorpha gravis Cope. Type. 



Marginal bones and part of plastron, associated with frag- 

 ments of carapace. Green River (Eocene). Bear 

 River, near Evanston, Wyoming. 



Cope, Proc. Amer. Phil. Soc, XII, 1872, p. 476; Rept. U. S- Geol. 

 Surv. Terr., Ill, 1884, p. 143, pi. 23, figs. 14-16. 



See Emys gravis. 



4103. Notomorpha testudinea Cope. Cotypes. 



Eutosternal and left posterior lobe of plastron. Green 

 River (Eocene). Bear River, near Evanston, Wyo- 

 ming. 

 Cope, Proc. Amer. Phil. Soc, XII, 1872, p. 475. 

 = Emys testudineus. 



988. Oligosimus grandaevus Leidy. Type. 



Vertebra. Cretaceous ? Henrys Fork, Green River, Wyo- 

 ming. 



Leidy, Proc. Acad. Nat. Sci. Phila., 1872, p. 39; Rept. U. S. Geol. 

 Sun-. Terr., I, 1S73, PP- 2 86, 345, pi. 16, figs. 18, 19. 



4736. Ornithomimus sedens Marsh. Type. 



Sacrum, pelvis, and twelve anterior caudals. Laramie 

 (Cretaceous). Alkali Creek, W3'oming. 

 Marsh, Amer. Journ. Sci. (31, XLIII, 1892, p. 451. 



