770 



Tapirus. Hyracotherium. 



Pach, 1869, p. 261; Handl., 1873, p. 35; 

 Frantz, Arch. Naturg., XXXV, 1. p. 302; 

 Sclat, P.Z.S, 1871, p. 626, pl. 1 (juv.); 

 1874, p. 89; Alston, Biol. Centr.-Am. 1882, 

 p. 101, pl. 8, fig. 1, 2; Hatcher, Amer. 

 Journ. Sc, I, 1896, p. 175, pl. 4 et 5. 



americanus, Moore, P. Z. S.. 1859, p. 51 

 (nec Briss.). 



4777. Dowi, Gill, Amer. Journ. Sc, 1, 1870, 

 p. 142; Alston, P. Z. S, 1879, p. 666; 

 Biol. Centrali-Amer, Mam, 1882, p. 104, 

 pl. 8, fig. 3— 5 et pl. 9; Sclat, P. Z. S, 

 1882, p. 391, pl. 23; Hatcher, Am. 

 Journ. Sc, 1896, I, p. 175. 



Bairdi, p, Sclat, P. Z. S, 1867, p. 473; 

 1872, p. 635, pl. 51; Gerv, Journ. Zool, 

 H, p. 26, pl. 1 (nec Gill). 



atlant.), Panama 



(Veragua, 

 flum. Chagres). 



America Centrali, 

 Guatemala, Nicaragua 



(Vulcan. Viejo, 



Corinto in rip. pacif.), 



Costa Rica 



(in rip. atlant.). 



1896. 

 id. 



Familia IV. Paiaeotheridae. 

 Equidae, p, Zittel. 



Subfam. 1. Hyracotherinae. 



— Wortman, Species of Hyracotkerium and allied Perissod., — Bull. 



Amer. Mus. Nat. Hist,. VIII. p. 81—110. 



— Earle, Comparison of the American and European forms of Hyra- 



cotkerium. — Amer. Xatur, 1896, p. 131. 



953. tHyracotherium, Owen, 1839 (1841). 



Macacus, p, et Eopithecus, Owen. 1846: Lophiodon, p, Auct. ; Lophio- 



therium, p.. Xotharctus, p, Orotheriwn, p, Cope, 1872 — 84; Eohippus, 



Marsh, 1876; Pachynoloplms, p. et Propachynolophus, Lemoine, 1891; 



? Hyracotheryus, Lem.. 1891; Helohyus, p.. Marsh, 1872 et 1892. 



A. Hyracotherium. 



4778. f leporinum. Owen. Trans. Geol. Soc. VI. 

 1839 (1841). p. 203; Brit.Foss.Mam., 

 1846. p. 419. fig. 165— 167; Geol. Mag, 

 1865. II. pl. 10. fig. 2; Earle. Amer. 

 Natur., 1896. p. 131. 



tEocaen. infer. 



Europa, I. Britannia, 



Helvetia. 



