EANA. 281 



process. Vomers rather large, in contact with each 

 other or narrowly separated in the middle. Palatines 

 well developed. Pterygoid with the anterior branch 

 the longest and reaching the palatines. Parasphenoid 

 dagger-shaped, the handle very short, the blade long 

 and pointed, extending to or nearly to the palatines. 

 Occipital condyles on a line with the articular ex- 

 tremities of the upper jaw. Symphysial bones very 

 distinct, thinner than and well distinguishable from 

 the mandibular rami, although fused with the dentary 

 in the adult. 



Vertebral column once and three-fourths to twice as 

 long as the skull. Vertebras open above, between the 

 zygapophyses, and at the sides, with a low but very 

 distinct neural crest ; diapophyses slender, subcylin- 

 drical, not very unequal in length, with the exception 

 of the second, which is longer than the rest and more 

 flattened ; first diapophysis directed slightly forwards ; 

 third, or third and fourth, slightly backwards; the 

 others horizontal, or the seventh again directed for- 

 wards. Diapophyses of sacral vertebra cylindrical, 

 directed slightly backwards; two condyles for articu- 

 lation with urostyle. Latter a little shorter than the 

 rest of the vertebral column, with strong crest in the 

 anterior three-fourths, without transverse processes. 



Prascoracoids slender, horizontal ; coracoids much 

 stronger, greatly expanded towards the median line ; 

 omosternum and sternum with a bony style. Supra - 

 scapula partially ossified. Humerus once and a half 

 to once and two-thirds the length of radius-ulna. 

 Six bones in the carpus, two in contact with radius- 

 ulna ; two bones in the pollex. Pelvis about two- 

 thirds the length of the vertebral column, the ilia 

 articulating with the extremities of the sacral diapo- 

 physis. Pubis large, ossified or calcified, entering 

 the acetabulum. Femur feebly curved. Astragalus 

 and calcaneum nearly equal in length, connected at 

 both ends by a calcined epiphysis ; the long bones 

 also with calcified epiphyses. A minute sesamoid bone 



