1861.] MR. A. D. BARTLETT ON THE JAPANESE PIG. 263 



G. nesiotis is much shorter, broader, and the keel is not nearly so 

 deep. The following are some of the most important corresponding 

 dimensions of this part of the two birds iu inches and decimal 

 parts : — 



G. nesiofis. G. chhropits. 



Length of sternum and coracoids 2'45 2*90 



Distance between outer ends of coracoids. . TSo 1*15 



Depth of keel 0-35 0-.55 



Length of keel along the base 1"50 1"85 



Length of keel along the crest 1'35 1'95 



I may remark, that the only other known land-birds of Tristan 

 d'Acunha are the singular Thrush described by Mr. Gould (P. Z. S. 

 18.55, p 65) as Nesoeichla eremita and a Bunting referred by Capt. 

 Carmichael to Emberiza {Sy calls 1) brasiliensis. The latter' s Turdus 

 guianensis is doubtless intended for Nesoeichla eremita. 



9. Remarks on the Japanese Masked Pig. 

 By a. D. Bartlett. 



This remarkable animal differs so much from all the varieties of 

 domestic pigs, that I am inclined to believe its origin must have 

 been from some species distinct from our common stock. 



The singular form of the head and face (see woodcut), together 



