ON SOME CARNIVOROUS THERAPSIDS. 1021 
54. Notes on some Carnivorous Therapsids. By D. M.S. 
Watson, M.Se., F.Z.S., Lecturer on Vertebrate Pals- 
ontology in University College, London. 
[Received June 3, 1914: Read November 24, 1914. |} 
(Text-figures 1-7.) 
INDEX. 
Page 
Description of Bauria cynops . tek sist on aclawichienionnane ese LOST 
x Micr Cooma GURGaCHORE cvadeseueesee LOLS 
33 Sesamodon . Jee 1025 
Discussion of the Saletoaenine ae the. iBaunides on ine 
Cynognathide .............. Smiqiicasnetaen VLOQG 
Description of the Brain-case of Seymnognathus sSeaters ewes Ode 
e 35 Quadrate region in the Gorgonopsids...... 1034 
is 5 Palate of Dycoswehus  ..............0--------» 1035 
During the last ten years a very large number of perfectly 
distinct genera and species of Carnivorous Therapsids from 
S. Africa have been described, but of the vast majority of these 
we know only the dentition or at most the outside of the skull. 
This paper is intended to indicate the very great differences 
which may occur in these types, and to show how caution is 
necessary in extending any morphological fact discovered in any 
form even to its apparently close relatives. 
Bavuria cynors Broom, (Text-fig. 1.) 
‘Daring my visit to S. Africa I collected from the Cynognathus 
zone of Essex, Dist. Albert, a small “ Cynodont” skull; which, 
when I found it, was very much weathered and broken into 
innumerable pieces. These fit together and give us a nearly com- 
plete but somewhat crushed skull, which is curiously preserved, 
the bones being very well preserved i in some parts and completely 
weathered away in others. The dentition is perfectly preserved. 
The skull is considerably smaller than that of the type-specimen 
of Bauria cynops, but direct comparison with a cast of that 
example and with Dr. Broom’s figures of it, shows no features in 
which they differ. 
The incisors are large and not of circular section; they are 
bluntly pointed, and there is a worn face on the posterior surface 
of each, so that they are sub-scalpriform. 
The canine is nearly circular in section. 
There are ten cheek-teeth visible in the upper jaw, of which 
the well-preserved crowns of the first and last four are preserved. 
They show no trace of cusps, but are ground down smooth in 
such a manner as to suggest a rodent- like movement of the jaw. 
There is a short diastema before and behind the canine. : 
The lower dentition is not so well known; the lower incisors 
are not markedly flattened anteriorly, and do not show clear 
