D eee ee 
= Epiphysial frontal appendages. a 
Upper canines absent. CERVIDA. 
BOVIDA. Outer toes absent. Antlers, 
Horns. Two orifices to lachrymal canal. 
Hypsodont molars. Gall-bladder and Cowper's glands usually absent. 
Upper canines absent. Moscxvus Upper canines plage ata sometimes greatly developed. 
oO t dimentary. ~~ Outer toes sometimes rudimentary. eae 
ee eee Upper canines Navicular, cuboid, and ectocuneiform united in some. TYLOPODA. 
reatly deve- Hypsodont molars. 
oped. Odontoid process crescentic. 
| No gall-bladder. 
PECORA Cameline stomach and specially 
Odontoid process crescentic. Boe hee odium ab- 
Left axillary arising from innominate. sent, inner pte bats 
Placenta cotyledonous. 
fe 
& 
& 
=) 
1 
i 
n 
Dp 
= 
‘cal Psalterium added to stomach. 
= Outer bones of metapodium rudimentary, TRAGULINA. 
& inner confluent. Inner bones of metapodium sometimes confluent. » 
x, Navicular, cuboid, and ectocuneiform united. oi, 
° Dremotherium. | ee 
es Gelocus, Fe. | yo 
= Three cavities to stomach. / / aU i = 
° Lower canines incisiform. th | 
= Upper incisors absent. ff / 
Ll Navicular and cuboid united. / / 
4 Upper incisors reduced. / 
a Ruminating. / 
° Dichodon. Cenotherium., | Oreodon, 
I Dichobune. Xiphodon. Agriocherus. / 
Pu Anthracotherium, fe. Hyopotamus, &e. | Anoplotherium, &c. / 
Selenodont molars. Bunodont molars. 
t-Primitive ARTIODACTYLA, having the typical number (44) of incisor, canine, and molar teeth, brachyodont molars, odontoid process conical, four distinct toes on each 
1S foot, with metapodium and all the tarsal bones discrete, a single orifice to the lachrymal canal, left brachial artery arising separately from aorta, placenta diffuse, a 
aS 
