SUS-STUDIES. 179 



The exceedingly thick-bony, short, broad, massive and 

 compact skull suggests as it were unvoluntary that the 

 animal ought to be a very strong build brute; I never 

 before saw a skull like the adult male-skull now to des- 

 cribe. Although the profile-line measures only 260 mm. 

 and is therefore a good deal shorter than the same in 

 vittatus (330 mm.) the skull is of the same broadness 

 measured over the zygomatic arches, so that it makes a 

 still less elegant impression than a vittatus-s\\x\\\ the nasal 

 bones end much more backwards than in vittatus, viz. in 

 a line with the suture that separates the maxilla from the 

 malar, the nasals are much broader than in any other 

 species; parietals meet not to form a crest behind (distance 

 26 mm.); the great infraorbital foramen above the fourth 

 upper premolar like in vittatus ; just anterior to this foramen 

 there is a strongly developed bony protuberance on the maxilla^ 

 as far as 1 am aware unknown in other skulls; premax- 

 illa ends abruptly anterior of the incisors; bony palate 

 ends like in vittatus at short distance behind the last 

 molar, but is much broader and the anterior palatine fora- 

 mina are much less elongated than in vittatus; molar series 

 shorter than in vittatus in accordance with the smaller 

 size of the skull ; the anterior premolar not in the teethrow, 

 in the old skull this tooth has been pushed away and the 

 second premolar occupies its place in the teethrow, however 

 out of the square. /?i the lower jaw there is aside the second 

 molar an enormously broad and high bony protuberance^ 

 unlike anything known in other skulls ; canines very large 

 and strong, at least as stoutly developed as in vittatus. 

 The figure of this adult male-skull may give further details. 

 The female-skulls materially do not differ from it in the 

 main points, except that the two pairs of remarkable pro- 

 tuberances are totally absent, solely in the lower jaw there 

 is a feeble swelling of the bone like in celebensis. One of 

 these three skulls is that of a very adult female, so used 

 are the molars that the four canines are mere stumps, in 

 the upper jaw all the molars are absent — the alveoli 



Notes from th.e Leyden JVXuseuiri, Vol. X.XVI. 



