218 MR. A. S. WOODWARD ON THE MANDIBULAR [Apr. 20» 



I was fortunate enough to bring home hving examples of both 

 these species, which are now deposited in the Zoological Gardens at 

 Berlin. The specimen of Sus papuensis was obtained in the month of 

 May, on the north coast of New Guinea, near the place noted on the 

 charts "Passir Point," a point, however, which does not really exist ; 

 it was then striped, but has now changed to the coloration of the 

 adult animal. The Black Pig {Sus niger) I purchased at Hihiaura, a 

 village some miles east of Beutley Bay ; it was then very young 

 (perhaps six weeks old), and of a uniform black colour, which it 

 still retains. 



Sus nigei' is scarcer than Sus papuensis, but lives in the same 

 localities ; it is of a more slender figure, higher on its legs and has 

 a much longer head. It grows to a considerable size, and I have 

 seen very huge animals of this species. 



I have observed Sus niger in a domesticated or semidomesticated 

 state everywhere I have been in New Guinea along the south-east 

 coast, and on the north-east coast from Milne Bay to Humboldt Bay, 

 but always less common than Sus papuensis. The natives catch the 

 young ones and feed them ; they are pets of the women and often 

 nursed at their breasts, and get very tame. This is the reason why 

 it is so difficult to get them. I have seen some very large specimens 

 in Hood-Bay district (village Kerapuno). Along the north-east 

 coast I saw this species in all the native villages, especially in Chads 

 Bay, in Village Island west of Fortification Point, in Astrolabe 

 Bay, and in Humboldt Bay. It may be mentioned tliat along tliis 

 coast I never saw any imported domestic l>igs, but such pigs have 

 been introduced into the Port-Moresby district and other piaces 

 where missionaries have heen sent. 



The only specimen of Sus niger in a Museum that I know of is a 

 young one in the Museum of tli.- Hon. William MacLeay of Sydney. 



3. On the Relations of the jMandibular and Hyoid Arches 



in a Cretaceous Shark (Ihjbodus dubrisiensis, Mackie). 



By A. Smith Woodwaud, F.G.S.^ of the Britisli Museum 



(Natural History) . (Communicated by the Secretary.) 



[Eeceived March 23, 188().] 



(Plate XX.) 



Exactly as in all other divisions of the Animal Kingdom, the rapid 

 accumulation of morphological facts regarding the Selachian order 

 is providing a sure basis for distinguishing the more archaic from 

 the decidedly modern types. There can l)e no longer any doubt, 

 for example, that among living Selachians the most primitive and 

 ancient forms are the Notidanidae, the Cestraciontidse, and the 

 ChlamydoselachidDe. And of all the characters by which these 

 groups are definitely marked off from the remaining membeis of the 

 Order, none are of greater interest and importance than those relating 



