| 
73 
loid process completely inclosed in a canal by the lateral 
extension of the base of the bony meatus auditorius. 
ANTILOCAPRIDAE. (XXXII) 
ii. Skull with the auditory bulla little produced downwards and 
applied only to the inner surface of the paroccipital process. 
Styloid process directed downwards, interposed between the bulla 
al process, and not inclosed in an oblique fold of 
and paroccipit 
Palatine axis nearly parallel with the oc- 
the auditory bulla. 
cipito-sphenoid axis. (Booidea cerviformia. ) 
One family. CERVIDAE. (XXXIII.) 
2. Placenta diffuse. Stomach tripartite, the psalterium being unde- 
Incisorial series of lower jaw interrupted at symphysis, (the 
veloped. 
panded towards their crowns.) 
middle incisors very enlarged and ex 
(Pecora unguligrada traguloidea.) 
One family. TRAGULIDAE. (XXXIV.) 
3. Familiae incertae sedis. 
a. Skull broad behind, in front of the molars contracted forwards, 
with the facial portion produced downwards and abbreviated, and 
with the nasal bones abbreviated and longitudinally arched. 
' 
| Molars (M 3, PM 3,) broad; inner crescentic plates of enamel run- 
Horns in two pairs. 
ning zig-zag-wise in large sinuous flexures. 
SIVATHERIIDAE, (XXXV.) 
b. Skull with the parietals and supraoccipital extended far back- 
wards, and contracted forwards in front of the molars, with the 
facial portion normally produced. Molars (M 8, PM 3,) broad ; 
, inner crescentic plates of enamel describing a simple curve. Horns 
; none, (in both sexes?) 
; HELLADOTHERIIDAE. (XXXVI) 
C. Hind limbs with the proximal joint (femur) not exserted, but inclosed 
within the common integument (Inferential). Canines of lower jaw 
f similar to and parallel with the incisors. Incisors all (1 3-3) persistent 
i in upper jaw. (M3, PMi,C 4,1 89=-44.) Placenta diffuse (Inferen- 
he tial). Stomach tripartite, the psalterium being undeveloped (Jnferen- 
» tial). (Pecora dentata.” 
1. Teeth of both jaws in an interrupted series, the canines of the upper 
jaw being enlarged, and the first premolar of the lower caniniform, and 
received in diastemas of the opposite jaw. ( Oreodontoidea. ) 
OREODONTIDAE. (XXXVII.) 
e uninterrupted series, the 
2. Teeth of both jaws in a nearly or quit 
(Anoplothero- 
canines and first premolars of neither jaws projecting. 
, idea.) 
a. Body somewhat cervifor 
the fore, (having the rela 
peds.) Teeth comparatively uniform. 
ANOPLOTHERIIDAE. (XXXVIIL.) 
m, with the hind limbs little longer than 
tive length normal to walking quadru- 
