Hyracotheruinij Protorohippus. Oroliippus. 
. E. Hyracotheryus, Lemoine (1880), 1891. 
4794.tdichobunoYdes, Lem., Ass. FraiiQ. avanc. fEocaen. icfor. 
773 
Sciences, 1880, p. 11; Bull. Soc. GeoL, 
XIX, 1891, p. 286, pl. 11, lig. 121. 
Europa, 
Gallia Orient. 
954. ProtoroMppus, Wortman, 1896. 
Hyracotheniun, p.. Cope (nec Owen), 1881. 
4795. jventicolus. Cope, llnll. Geol. Suit., 1881, 
p. 198 (pari); Teri Veri, 1884, p. 635, 
pl. 49 a, b, c (specim. ex AVind-River-beds 
tantum); Amer. Natur., 1887, p. 994, pl. 
30; Wortm., Bull. Amer. Mus., 1896, p. 
105, fig. 14, 15, pl. 2, tig. D et N. 
fEocaen. med. 
Wyoming 
(Wind-River). 
955. f OroMppus, Marsh (1872), 1874, emeiid., 1876. 
Lophiodon, p., Marsh, 1871; Orotherium, Marsh, 1872 (nec Aymard, 
1848); Pachynolophm, p.. Cope; llelohippus, Marsh, 1892. 
A. Helohippus, Marsh, 1892. 
4796. t pumilus, Marsh, Amer. Journ. Sc., 1871, 
II, p. 38; 1872, IV, p. 207 ; 1874, VII, 
p. 247; 1876, Xll, p.491 (genus); 1892, 
XLIII, p. 353 (subg.); Osboru, Trans. Am. 
Phil. Soc., 1889, p. 507 (conigenda) ; 
Wortman, BuU. Am. Mus., 1896, p. 108, 
fig. 18 (genus), pl. 2. fig. E, F-N; Earle, 
Amer. Nai, 1896, p. 135 (genus). 
fEocaen. med. 
America sept. 
Wyoming (Bridger). 
B. Orohippus, p. d. 
4797. f major, Marsh (nec Cope), Amer. Journ. 
Sc., 1874, VII, p. 248. 
4798. f sylvaticus, Leidy, Exi VeriFauna, 1873, 
p. 69, pl. 6, fig. 33—35 (Lophioth.); Plio- 
loph. et Orotherium, p.. Cope. 
4799. f Ballandi, Marsh, Am. , Journ. Sc., 1872, II, 
p. 40; Leidy, Exi Veri Fauna, 1873 
(Lophiotherium). 
fEocaen. med. 
Wyoming (Bridger). 
fEocaen. med. 
Wyoming (Bridger). 
fEocaen. med. 
Wyoming (Bridger). 
