84 Albany Museum Records. 



middle line, thus proving that tlu' part has been broken from its 

 original i)osition. All those portions of the snout which can be 

 compared with similar parts in the type of Cjaiognathus platyceps 

 agree so closely as to leave no doubt that not only does the snout 

 belong to Cynognathus, but to C. platyceps. The snout, however 

 belongs to a scarcely mature animal, hence the presence of the 

 two canines. The posterior of the two is the old one, and the 

 anterior the replacing. To the outer side of the 3rd incisor there 

 is the remains of the deciduous 3rd incisor. 



The antero-posterior measurement of the four molars in front 

 of the last in spec. 2 is 31mm. In the type they measure 31.7 mm. 



Pres. by Dr. R. Kannembyer, near Burghersdorp. 



Cynognathus sp. 



Specimen 3. — This is the very badly crushed and imiterfect 

 anterior part of the skull with lower jaws of a species of Cynog- 

 nathus Though the upper part of the snout is lost, almost the 

 whole of the dentition is preserved. The specimen resembles 

 considerably C. crateronotus, but is only about tw^o-thirds the size. 

 The anterior of the molars i-esemble those of C. Berryi, but the 

 posterior molars are very much larger. In Seeley's description of 

 the type of C. Berryi the measurements of the teeth are not given 

 with sutfici'Mit minuteness to enable one to make a satisfactory 

 comparison, and considering how inaccurate the figures of C. 

 platyceps ai-e, it is ditticult to know how far one can rely on the 

 figure of C. i^erryi. If the 8th and Dth teeth are correctly des- 

 cril)ed as small, then the present specimen must belong to a new 

 species. I think it advisable, however, not to name it till a com- 

 })arison with the type of C. Berryi is possible. The following ai-e 

 the prineii)al upiter tooth ni:'asurements : — 



Height. Leiigtli. 



Canine pr<ibalily about 2") mm. 10.;") mm. 



1st molar 5 mm. )).") mm. 



2nd molar .')."> mm. \ mnj. 



3rd inolar 



4th molar 7 mm. 



•Ith molai' 8.;") mm. <S mm. 



(Uh molar IKT) mm. 1*.2 nmi. 



7th mohn- }ii-ol)ubly about 10..") nun. 10.2 mm. 



(Sth molar ,, ,, ,, 11 mm. 



Dth molar „ „ 11 mm. alxmt 1 I nun. 



There are l».cusps on the ])ack of the 7tli and Sth mollis. 



Bres. by Dr. Kannemeyer, Wonderltoom, llurghersdorp. 



