404 Mr. C. Forster-Cooper on new Mammals 



sexual characters it agrees with Hijla carulea, but differs 

 in the small tympanum, a character which it shares with 

 H. humeralis. 



EXPLANATION OF PLATE XVIII. 



Hyla angioma, $ , natural size, with lateral view of head and anterior 

 part of body, and open mouth. 



XLIX. — New Gtnera and Species of Mammals from the 

 Miocene Deposits of Baluchistan. — Preliminary Notice. 

 By C. Fokster-Cooper, M.A., Superintendent, University 

 Museum of Zoology, Cambridge. 



The following specimens were obtained from the Dera Bugti 

 province of Baluchistan ; the types and other specimens will 

 be placed, together with the rest of the collection, in the 

 British Museum of Natural History, as soon as the whole 

 collection is catalogued. 



Parabrachyodus obtusus, gen. nov. 



In a previous issue of this Journal (vol. xii., December 1913, 

 p. 520) I described a third lower molar as that of a new 

 species doubtfully referred to the genus Brachyodus. Some 

 fragments of maxillae seem to agree with this particular tooth 

 as regards size and general characteristics, and, as they show 

 a peculiarity which distinguishes them from the genus 

 Brachyodus, a new genus is here created for them. 



The type-specimen of the genus is a left maxilla showing 

 the fourth premolar and the full series of three molars (rig. 1). 

 Like the lower molar (fig. 2) already described {loc. cit.), the 

 teeth are brachyodont and bunodont, with a moderately well- 

 marked cingulum, and are not easily to be distinguished 

 from those of B. giganteus, the third upper molar being 

 extremely like the cast of the type third molar of the latter 

 species. The fourth premolar, however, shows a distinct 

 difference, in that the upper cusp is practically aborted and 

 shows as a very thin ridge lying just inside the well-developed 

 inner cingulum. A side-view (tig. 1 A) is here given, showing 

 the difference between the outer cusp, which is normal in 

 size and somewhat worn, and the inner cusp, which, though 

 quite untouched by wear, is very small. 



That the condition is not an individual variation is shown 



