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 L,ucas. Type. 



Episternum. Triassic. Five miles east of Tanners Cross- 

 ing, lyittle 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 (Jitrassic). Canyon City, Colorado. 



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

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

 pi. 30, fig. I. 



5369. Morosaurus agilis Marsh. Plesiotypes. 



5371. (i) 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. i, 

 1896, p. 182, pi. 37, (i) fig. 2, (2) fig. I. 



873. Mosasaurus sp. undet. 



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

 Alabama. 



Leidy, Smithsonian Contrib. to Knowl., XIV, 1S65, p. 72, pi. 19, fig. 7. 



4129. Notoniorpha gravis Cope. • Tj^pe. 



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. 



Entosternal 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 tcstudineus. 



988. Oligosimus grandaevus L,eidy. Type. 



Vertebra. Cretaceous ? Henrys Fork, Green River, Wj^o- 

 ming. 



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

 Surv. Terr., I, 1873, pp. 286, 345, pi. 16, figs. 18, 19. 



4736. Ornithomimus sedans Marsh. ' Type. 



Sacrum, pelvis, and twelve anterior caudals. Earamie 

 (Cretaceous). Alkali Creek, Wyoming. 

 Marsh, Amer. Journ. Sci. (3), XLIU, 1892, p. 451. 



