Heptodon, Helatotes, Colodon. 
-j-Eocaen. 
Nov.-Mexico. 
761 
4722. -j-y singularis. Cope, Rep. Geol. Surv. West 
100 merid., ' 1877, p. 267, pL66; Tert. 
Vert., 1884, p. 618, tig.31; (= Uyrachym 
singularis, Cope, — Vide supra Sp. 4633) ; 
Wortra., Bull. Am. Mus., 1896, p. 86. 
942. tHelatetes, Marsh, 1872. 
I^ophiodon, p. et HyracMus p., Leidy, Cope, Riitim.; Desmatotherium 
et Dilophodon, Scott, 1883. 
4723. -)-boops, Marsh, Amer. Journ.Sc., IV, 1872, 
p. 218; Osh. et Wortm., Amer. Mus., 1892, 
p. 131; 1895, p. 360. 
nanus, Leidy. Proc. Acad. Philad., 1872, 
p. 20; Ext. Vert. Fauna, 1873, p. 67, pl. 2, 
6, 26, 27. 
4724. tGuyoti, Scott, Contrib. Mus. Priucet. Coli., 
1883, p. 46, pl. 8 (Desmat.). 
4725. t minusculus, Scott, Contr. Mus. Priucet. 
ColL, 1883, p. 51, pl. 8 (Diloph.). 
4726. f Cartieri, Riitim., Boc. Saug. Schw. Jura, 
1862, pl. 3 ; Abh. Schw. Pal. Ges., XVIII, 
1891, p. 25, pl. 1; Osb., Amer. Natur, 
1892, p. 673. 
f Eocaen. Wyoming. 
f Eocaen. Wyoming. 
f Eocaen. Wyoming. 
f Eocaen. Europa 
Helvetia (Jura). 
943. t Colodon, Marsh, 1890. 
Lophiodon, p., Cuv., Blainv., 1840, Leidy, 1869 ; Mesotapirns, Scott et Osb., 
1889; Mesohippus, p., Osb. et Wortm.; Pachynolophus, p., Gerv., 1859. 
4727. f dakotensis, Osb. et Woidra., Bull. Am. 
Mus., 1895, p. 362, fig. 7 ; Hatcher, Amer. 
Journ.Sc., I, 1896, p. 171, pl. 3. 
4728. t longipes, Osb. et Wortm., Bull. Am. Mus., 
1894, p. 214; 189.5, p. 366 (forsan pedes C. 
dakotensis). 
occidentalis, p., Hatcher, 1896. 
4729. f minimus, Fisch., Syn. Mam., 1829, p. 413, 
ex Cuv., Oss. Foss., 2® Ed., II, 1822, p.l76; 
4® Ed., 1836, IH, p. 360, pl. 80, tig. 20—25 
fMiocaen. infer. 
America sept., 
Dakota (White River). 
fMiocaen. infer. 
Dakota (White River). 
f Eocaen. med. 
Europa, 1. Britannia, 
