SUS-STUDIES. 191 



as to the general shape it belongs to the non-elegant 

 verrucosus-tjTpus, but herewith stops the conformity with 

 that species ; it is of a still smaller size than celebensis, 

 having a profile-line of 295 mm. and the parietals approach 

 behind at a distance of 20 mm. ; the profile-line is concave 

 at the base of the nasalia, the latter bones for the rest 

 broad and straight; eye-holes surprisingly large; bony 

 palate ends behind the last molars for not more than 9 

 mm.; size and shape of these hind-most molars may be 

 studied from Plate 13, they all are very used; in each 

 ramus of the underjaw only six molars are to be seen, 

 however not as a proof of advanced age, although there 

 is no trace of adveole. It is very remarkable that in an 

 other skull — half grown as the hind-most molar still 

 is absent — from Batjan ') there also the anterior premolars 

 are wanting without a trace of adveole and in a still 

 younger skull — the two hind-most molars are not yet 

 developed — the very anterior lower premolars are absent 

 without a trace of alveole; I confine myself at present by 

 stating this as a bare fact without any comment, it however 

 is too obvious to give room to a mere casuality, I think, 

 for as a rule the anterior lower premolar in other Pig- 

 species is always to be seen in very young specimens, 

 generally is persistent in elder individuals and only falls 

 out in very old ones, although even then exceptionally. 



The very young specimens are very conspicuously striped 

 or banded, reddish brown and black, as our two specimens 

 from Morotai and the Batjan-specimeu may demonstrate. 



Our specimens are from Batjan, Morotai, Waaigeou and 

 Arou-islands, Wokam. 



11. Sus niger Finsch. 

 The skull of a n{ger-s]^ecimen never before has been 



1) A skull without skin, collected in Batjan by Dr. Bernstein and, like a 

 very young specimen from Batjan by the same collector, probably belonging 

 to Sus papnensis. 



Notes from tlie Leyden IVTuseuin, A^ol. XXVI. 



