16 
MAMMALIA. 
PALJJOTHEEIIDiEJ. 
Palceotlierium eoccenum^ sp. n. (foss.), P. Gervais, J. Zool. iv. p. 422 ; 
Eocene of France. 
Squids. 
Burmeister, H. Los caballos fosiles de la Pampa Argentina. Buenos 
Aires : 1875, fol. pp. i.-viii., 1-88, pis. i.-viii. 
A comparative description of the fossil horses of the Pampas quarter- 
nary formation : — Hippoideum neogceum^ Lund, (skeleton figured), and 
H. principale^ and Equus argentinus, sp. n. (p. 56), and E. curvidens. In 
the Appendix, pp. 72-88, a list of 64 species of fossil mammals from the 
same formation is given, with general observations. 
^ Orohippus tapirinus^ 0. angustidens^ and 0. cuspidatus, E. D. Cope, 1. c. 
[ pp. 20-22, Eocene of New Mexico ; 0. uintensis, O. 0. Marsh, Am. J. Sci. 
1(3) ix. p. 247, Eocene of Utah : spp. nn. (foss.). 
^S^Mesohippus, g. n. (foss.). Marsh, tom. cit. p. 248 ; intermediate between 
.Orohippus and Anchitherium. Types, A. bairdi ^ Leidy, and A. celer, 
/Marsh. 
Hippotherium calamarium, sp. n. (foss.), E. D. Cope, in Wheeler’s 
Ann. Rep. Geog. Expl. & Surv. 1875, p. 70 ; P. Ac. Philad. 1875, p. 259 ; 
VPliocene of New Mexico. 
Equus cahallus. On a hydrocephalous cranium ; P. Gervais, J. Zool. 
V. pp. 191-195, pi. iv. 
Genera inceetaii sedis. 
Coryphodon oweni. Note on its osteology ; G. Vasseur, Bull. Soc. G4ol. 
(3) iii. pp. 181-186, pi. hi, 
Bathmodon. E. D. Cope gives further details of the osteology of this 
genus, and describes six species, B. elephantopus^ lomas^ simus, molestus^ 
radians^ latidens, and cuspidatus, all from the Eocene of New Mexico. He 
removes the group ‘from the Prohoscidea [c/. Zool. Rec. xi. p. 13], 
making it the type of a new order, Amblypoda, of which two sub- 
orders are recognized: — I. Pantodonta, with Bathmodon, Metala- 
phodon, and perhaps Coryphodon ; and II. Dinocerata, with Uinta- 
therium and Loxolophodon. Report on Vertebrata of New Mexico, Ann. 
Rep. Chief of Engrs., 1874, pp. 696 & 597 ; Vertebrata of Eocene, Geog. 
Expl. & Surv. 1875, pp. 29 & 30 ; P. Ac. Philad. 1875, p. 73. Cranium of 
B. elephantopus figured ; id. in Wheeler’s Ann. Rep. Geog. Expl. & Surv. 
1875, pis. V. & vi. 
'4 Meniscotherium chamense, g. & sp. nn. (foss.), E. D. Cope, Ann. Rep 
Chief of Engrs., 1874, p. 596, Eocene of New Mexico. 
UNGULATA ARTIO DACTYL A. 
~^E. D. Cope regards the line of descent of the Camelidce to be repre- 
sented by Poebrotherium, that of the Tragididce by Ilycemoschus, and 
