320 



ANTHRACOTHERIDiE. 



ELOTHERIUM. 



Pomel : Bibl. Uuiv. Geneve, Archives, 1847, 307. 



Entelodon. Aymard : Mem. Soc. Agric., &c., dii Pay 1848, 240. 



Archa'otherium. Leidy : Pr. Ac. Nat. Sc. 1850, 90. 



Elotherium Morton 1 1 



Leidy : Pr. Ac. Nat. Sc. 1857, 175 ; Ext. Mam. N. America 1809, 388, 

 Noticed from Wyoming, page 125, and represented by Figs. 28, 29, Plate 

 VII. 



Elotherium imperator. 



Inferred from several mutilated teeth from the Miocene of Oregon, de- 

 scribed page 217, and represented in Figs. 3, 4, Plate II, and Fig. 27, 

 Plate VII. • Supposed to be the same as E. superhuin in Pr. Ac. Nat. 

 Sc. 1870, 112. 



Elotherium ingens. 



Leidy : Ext. Mam. N. America 1SC9, 388 ; Pr. Ac. Nat. Sc. 1870, 112. 



Noticed from the Miocene of Oregon. Orighially from the Miocene of 

 White River, Dakota. 



FAMILIES UNDETERMINED. 



HYOPSODUS. 



Hyopsodus paulus. 



Leidy : Pr. Ac. Nat. Sc. 1870, 110 ; 1872, 20 ; Hayden's Eep. Geol. Sur. Wyo- 

 ming 1871, 354 ; Hayden's Eep. Geol. Sur. Montana 1872, 363. 



To this species, described page 75, I refer Figs. I to 9, 18 to 22, Plate VI. 

 From the Bridger Eocene of Wyoming. 



Hyopsodus minusculus. 



This species, described page 81, is represented by Fig. 5, Plate XXVII. 

 From the Bridger Eocene of Wyoming. 



MICROSYOPS. 



Leidy : Pr. Ac. Nat. Sc. 1872, 20 ; Hayden's Prelim. Eep. Geol. Sur. Montana 



1873, 3G3. 

 Limnotlierium. In part of Marsh : Am. Jour. Sc. 1871, II, 42. 



MiCROSYOPS elegans. 



Limnothcrmm cicgans. Mar.sli : Am. Jour. Sc. 1871, 11, 43. 

 Microsijops gracilis. Leidy : Pr. Ac. Nat. Sc. 1872, 20 ; Hayden's Prelim. Eep. 

 Geol. Sur. Montana 1872, 363. 



