48 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



145. Merycochoerus rusticus Leidy. Type. 



Portion of cranium and lower jaw of left side containing 

 complete dentition. Pliocene. Sweetwater River, 

 Wyoming. 



Leidy, Proc. Acad. Nat. vSci. Phila., 1870, p. 109; Rept. U. S. Geol. 

 Surv. Terr., I, 1873, pp. 199, 319, pi. 3, figs. 1-3. 



442. Merycochcerus rusticus I^eidy. Paratypes. 



532. Various teeth and bones of skeletons. Miocene. Sweet- 



535-537. water River, Wyoming. 



913- Leidy, Proc. Acad. Nat. Sci. Phila., 1870, p. 109; Rept. U.S. Geol. 



Surv. Terr., I, 1873, PP- I99) 3i9> pl- 7> figs. 1-5; pi. 20, figs. 



530. Merycochoerus sp. undet.? 



Distal end of tibia. Pliocene. Sweetwater River, Wyo- 

 ming. 



Leidy, Rept. U. vS. Geol. Surv. Terr., I, 1873, p. 208, pi. 20, fig. 12 



148. Merycodus furcatus (I^eidy). See Cosoryx furcatus. 



1036. Merycodus furcatus (Leidy). See Dicrocerus furcatus. 

 (Also catalogue numbers 1144, 1146-1150, 2046.) 



5385. Merycodus necatus lycidy. Plesiotype. 



435. Right side of lower jaw containing five teeth, p -m ; first 



premolar. Loup Fork (Upper Miocene). Niobrara 

 River, Nebraska. 



Leidy, Journ. Acad. Nat. Sci. Phila. (2), VII, 1869, p. 162, pi. 14, 

 figs. 9, 10. • 



149. Merycodus necatus Leidy. See Cervus warreni. 



2029 Merycodus necatus Leidy. See Dicrocerus necatus. 



to 

 2033. 



5390. Merycodus ramosus (Cope). See Cosoryx ramosus and Di- 

 crocerus necatus. 



1035. Merycodus tehuanus (Cope). See Dicrocerus tehuanus. 

 4oc^io37. 

 5391- 



1031. Merycodus trilateralis (Cope). See Dicrocerus trilateralis. 

 1145- 



2359. Mesohippus bairdii (Leidy). See Palseotherium bairdii and 

 Anchitherium bairdii. 



1633. Mesoteras kerrianus Cope. Type. 



Fragment of cranium and jaw. Miocene. Banks of 

 Omanky Creek, Halifax County, North Carolina. 



Cope, Amer. Nat., IV, 1870, p. 128. 



1 178. Microsus cuspidatus Leidy. Type. 



Part of left lower jaw containing last two molars. Bridger 

 (Eocene). Black Fork of Green River, Wyoming. 



Leidy, Proc. Acad. Nat. Sci. Phila., 1870, p. 113; Rept. U. S. Geol. 

 Surv. Terr., I, 1873, p. 81, pi. 6, figs. 10, 11. 



