944 DR. C. W. ANDREWS ON A NEW FOSSIL MAMMAL. 



tubercle which is joined to the outer by a ridge widening from 

 within outwards. 



The last premolar (pm. 4) (figs. 1,1a) consists essentially of two 

 transverse crests which are united towards the outer side by a low 

 obscure ridge. On the anteiior face of the tooth there is a slight 

 prominence of the cingulum, the surface of wear of which becomes 

 continuous with that of the outer eiid of the anterior crest. 

 There is also a low transverse ridge formed by the cingulum' 

 on the posterior face of the tooth. 



The first molar has unfortunately been lost; the second {in. 2) 

 consists of a pair of transverse crests, the ends of which, especially 

 the inner end, are higher than the middle and the anterior face 

 of which is concave. On the posterior end there is a well-developed 

 ridge of the cingulum extending nearly the whole width of the 

 tooth. The third molar {m. 3) is similar to the second except 

 that it has a well-developed ti-iangular talon, the outer side of 

 which is formed by a prominent tubercle from which a crest 

 diminishing in height and width runs to the inner edge of the 

 tooth. 



In size and, on the whole, in the pattern of the teeth this 

 Dinothei'iuin is very similar to D. cuvieri Kaup, which is from the 

 lower and middle Miocene of France, being apparently especially 

 characteristic of the Burdigalien horizon. Detailed comparison 

 however shows some differences. In pm. 3 the separation of the 

 antero-internal cusp is much more distinct than in a specimen of 

 the same tooth ascribed to D. cuvieri ; the last premolar is shorter 

 in proportion to its width than in that species, and in the talon of 

 vi. 3 the outer tubercle is much more distinctly and independently 

 developed. These differences, coupled with the remoteness of the 

 localities in which the two forms are found, seem to justify the 

 establishment of a new species for this East African animal and I 

 propose that it shall be called 



DiNOTHERiUM HOBLEYi Andrews. 

 Abstract, P. Z. S. 1911, p. 35 (May 30th). 



The dimensions (in centimetres) of the teeth in the typo- 

 specimen are : — 



An imperfect proboscidean calcaneum (fig. 5) probably belongs 

 to this species. It belongs to the left side, and a gi'eat part of its 

 outer half is broken away and some of the other faces are abraded. 

 Its extreme length is 17'2 cm., the cast of a calcaneum referred 

 to Dinotherium giganteum is 32"7 cm. or nearly twice as long. 



From the same locality there have been obtained a lower molar 



