ungulAtA, sireniA. Martini. 41 
t Eomeryx, n. g., armatus , Marsh, Amer. J. Sci. (3) xlviii, p. 176 ; type 
Heptacodon armatus. 
\Hyomeryx , n. g., breviceps, n. sp., Marsh, t. c. p. 268, Miocene, Dakota. 
Both this genus and the last are assigned to a new family, Eomerych- 
itlce. 
f Family uncertain ( Eohyidce , Marsh). 
t Eohyus distans and robusius , n. spp., Marsh, Amer. J. Sci. (3) xlviii, 
pp. 259 & 260, Lower Eocene, N. Mexico. 
\Parahyus aberrans , n. sp., Marsh, op. cit. p. 261, ibid. 
\Homacodon jwiscus, n. sp., Marsh, l. c ., ibid., on p. 263, Pantolestes , 
Cope, is identified with this genus. 
t Nanomeryx, n. g., caudatus , n. sp., Marsh, op. cit. p. 263, ibid. 
17; IChceropotamidj:. 
■fElotherium crassum , its restored skeleton, Marsh, Anter. J, Sci. (3) 
xlvii, pp. 407 & 408, pi. ix. 
18. DlCOTYLIDiE. 
\Thinohym robustus , n. sp., Marsh, Amer. J. Sci. (3) xlviii, p. 94, 
Miocene, Oregon. T. nanus , n. sp., op. cit. p. 271, Miocene, Dakota. 
iLeptochcerus gracilis , n. sp., Marsh, op. cit p. 271, Miocene, Dakota.' 
fPlatygonus rex , n. sp., Marsh, op. cit. p. 273, Pliocene, Oregon, 
f Platygonus leptorhimis, n. sp., WillIston, Science, xxiii, p. 164, 
Pliocene, Kansas. 
19. SuiD2E. 
Sus barbate, note on two Philippine varieties, Neiiring, SB. Ges. naturf. 
Berlin, 1894, pp. 190 & 191. 
Sus marchei , identified with S. celebensis , var. philippensis , Nehring, 
op. cit. p. 219. 
Sus scrofa, osteology ; Staurengiii, supra, p. 20. 
PotamocTio&nis edwdrdsi , of Madagascar, shown by SclAter, P. Zool. 
Soc. London, 1894, p. 92, to be a distinct species ; Last, l. c., notes its 
habits. 
VII. SIRENIA. 
1. B.HYTINHX®. 
Rhytina gigantea, its extinction and distribution ; Dawson, suprdi, p. 6; 
Manatus and Halicore, the foetus ; Turner, supra, p. 22. 
