40 Mamm. 
II. MAMMALIA. 
12. CAMELID33. 
For characters and synonymy of the Argentine Tertiary forms, see 
Lydekker, An. Mus. La Plata, Pal. Arg. ii, art. 3, p. 83. For 
Arabian Camel, see Leonard, supra , p. 11 ; and for Wild Camels of 
Lob-Nor, Littledale, P. Zool. Soc. London, 1894, p. 446. 
■j ’Procamelus altus , n. sp., Marsh, Amer. J. Sci. (3) xlviii, p. 274, Pliocene, 
Oregon. 
t Parameryx lav is , n. sp., Marsh, op. cit. p. 269, L. Eocene, N. Mexico. 
Leptotragulus is identified with this and the next genus. 
fOromeryx plicatus, n. sp., Marsh, loc. cit., ibid. 
13. tP R0T °CEKATlDJJ. 
t Protoceras comptus , n. sp., Marsh, Amer. J. Sci. (3) xlviii, p. 93, 
Miocene, Oregon. 
t Calops, n. g., cristatus , n. sp., Marsh, op. cit. pp. 94 & 273, ibid. 
14. "fC/OTYLOPIDiE. 
For the Oreodonts of the Deep River Beds, see Scott, Trans. Amer. Phil. 
Soc. xvii, pp. 126-166 ; for thoso of White River, Osborn & Wort- 
man, Bull. Amer. Mus. vi, p. 215. 
\Ayriomeryx , n. g., migrans , n. sp., Marsh, Amer. J. Sci. (3) xlviii, p. 270, 
Miocene, Dakota. 
15. fAGRIOCHCERIDJ:. 
f Artionyx, Osborn & Wortman, is shown by Scott, P. Amer. Phil. Soc. 
1894, p. 243, to be identical with Agriochcerus , Leidy. The genus has 
no affinity with Chalicotherium , but appears to be a specialized Oreo- 
dont, with partially unguiculate feet, and perhaps having some 
relationship to Hyopotamus. 
16. f Anthracotheriidas. 
\Ancodus ( Hyopotamus ) ; Scott, Geol. Mag. (4) i, pp. 492-494, shows 
that in the American forms there were five digits in the manus, and 
the general osteology approaches closely to that of the Oreodonts. 
f Hyopotamus brachyrhynchus, n. sp., Osborn & Wortman, Bull. Amer. 
Mus. vi, p. 220, Miocene, White River. 
\ Anthracotherium karense, n. sp., Osborn & Wortman, t. c. p. 222, ibid. 
iHeptacodon , n. g., curtus, n. sp., Marsh, Amer. J. Sci. (3) xlvii, p. 49 ; 
H. armatus , p. 93, gibbiceps , p. 175, op. cit. xlviii, n. spp., Miocene, 
Dakota. 
t Octacodon, n. g., valens , n. sp., Marsh, op. cit. xlviii, pp. 92 & 173, 
Miocene, Oregon. 
