DESCRIPTIONS OF NEW SPECIES OF MAMMALS. 783 



these are the relatively shorter rostrum and the very distinct angle in the 

 facial profile at posterior extremity of nasals. This angle is difficult to mea- 

 sure, but it is approximately 8° in Sus cristatus and 18° in S. nicobaricus. The 

 audital bullae appear to be relatively larger than in the average of Sus crista- 

 tus, but this character is probably not constant. 



Teeth. — The teeth are slightly larger in proportion to the size of the skull 

 than in Sus andamanensis, but otherwise I can detect no differences. They 

 also agree in all essential characters with those of Sus cristatus. 



Measurements. — External measurements of type : Total length, 1,190 mm.; 

 head and body, 1^000; tail, 190 ; height at shoulder, 520; hind foot (hoof 

 included), 185 



Cranial measurements of adult male considerably older than type (No. 1 12011 

 U.S.N. M,): Occipito-nasal length, 280 mm.; basal length 255 ; basilar length, 

 245; length of nasals, 133 ; width of both nasals together posteriorly, 40; 

 median length of bony palate, 175 ; width of bony palate at middle of second 

 molar, 31 ; distance between tips of postorbital processes, 92 ; least interorbi- 

 tal breadth, 71 ; zygomatic braadth, 130; occipital breadth, 57 ; occipital depth, 

 105 ; least depth of rostrum between canine and incisor, 35 ; mandible, 220 ; 

 depth of mandible through coronoid process, 105 ; depth of ramus at front 

 of tirst molar, 32 ; maxillary toothrow to front of canine (alveoli), 118 ; man- 

 dibular toothrow to front of canine (alveoli), 132 ; crown of first upper 

 molar, 12 by 14 ; crown of second upper molar, 17 by 17 ; crown of third 

 upper molar, 26 by 18; crown of first lower molar, — ; crown of second lower 

 molar, 10 by 14 ; crown of third lower molar, 30 by 15. 



Remarks, — This species is readily distinguishable from the Andaman pig 

 by its larger teeth. The uniform black colour of the type and the peculiar 

 hairing of the tail may be mere individual characters. 



The occurence of a diminutive wild pig on the Nicobar Islands was noted 

 as long ago as 1863 by Blyth' ; but until the present time there has been no 

 opportunity to compare the animal with Sus andamanensis. That it proves to 

 be distinct from the Andaman swine is not in the least surprising, though 

 such a possibility appears not to have occurred to Blyth. He says : 



The small Andamanese wild pig appears, at first, to be as isolated in its range as new to 

 science; but I have been assured of the existence of a diminutive wild pig in the Nicobars, 

 additional to the huge tame swine of undoubtedly exotic origin, which are bred by the 

 Nicobarians of the coasts ; and I have also considerable reason to suspect that it exists like- 

 wise in Sumatra. 



The differences between the wild and domesticated pigs of the Andamana 

 alluded to by Blyth were noted in considerable detail by Dr. Abbott.^ 



Pigs, both tame and wild [he writes], were plentiful in the Nicobars. Those in Kar 

 Nicobars, and many of the tame onea everywbere, are descendents of European and Chinese 

 stock, and splendid big porkers some of them are. But the wild pig of which I send you 

 one skin and two skuUs from Great Nicobar does not seem the same. It is small, aboutjhe 



^ Appendix to Mouat's Adventures and Researehea among the Andaman Islanders, p. 349, 



" Letter dated April 23, 1901. 

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