1880.] MR. G. E. DOBSON ON A NEW BAT. 443 



Skulls of Bears collected by Swinhoe in Formosa agree in their 

 dentition perfectly with the true Ursus ornntus. 



Calorhinus ursinus, L. 



A young Eared Seal, 28 inches long, is in the collection of Mr. 

 Pryer ; it has no skull, but is otherwise perfect, so that there is no 

 doubt about the correctness of the determination. It shows two 

 characters by which this species can lie readily distinguished — namely, 

 the great width and length of the hind flapper, and, secondly, the 

 naked surface of the upperside of the front flapper, already noticed 

 and figured by J. A. Allen (Bull. Mus. Comp. Zool. ii. no. 1, 

 p. 76). The hairs do not proceed beyond the carpal region, where they 

 are arrested in a straight transverse line. It will be useful to de- 

 scribe here the colour of this young specimen. The longer hairs of 

 the upper parts are brownish black with a light greyish tip, the 

 back looking brownish black if viewed from behind forwards, and 

 greyish if looked at in the opposite direction. The sides of the ab- 

 domen are white, the white extending upwards and forming a marked 

 patch on each side of the sacral region. The throat and fore part 

 of the chest are dirty whitish ; the lips and chin, the lower part of 

 the chest, a stripe along the median line of the abdomen, and the 

 preanal region chestnut-brown. The short hairs of the flappers 

 blackish brown. The uuderfur is white, slightly tinged with brown. 



This species appears to be new to the fauna of Japan. 



EXPLANATION OF PLATE XLII. 



A. l^eUrotrichus gibbsii. 



B. Urotrichus talpoides. 



a. Fore foot of Neiirotrichus. 

 a'. Hind foot of Neiirotrichus. 



b. Fore foot of Urotrichus. 

 b'. Hind foot of Urotrichus. 



u. Dentition of right upper jaw of Neiirotrichus. 

 I. Dentition of right lower jaw of Neiirotrichus. 



4. Description o£ a new Species of the Genus Natalus (Ves- 

 pertilionidse) from Jamaica. By Gr. E. Dobson^ M.A., 

 M.B., &c. 



[Received May 8, 1880.] 



During my late visit to the West Indies I was fortunate enough 

 to obtain in Jamaica the single specimen (an adult male) from which 

 the following description is taken. 



Natalus micropus, u. sp. 



In general form resembling N. stramineus, but may be at once 

 distinguished from that species by the presence of certain processes 

 ou the muzzle in front and by the very small size of the foot. 



Ears and tragi like those of N. stramineus, but the tip of the ear- 



