146 Mr. 0. Thomas on a new Subspecies of liar e. 



brought alive from the island, and in whose care it lived for 

 about four years in China. 



Tlie animal seems most closely to resemble H. hooJockj 

 but differs from that, as from every other known species 

 (except //. si/ndactylus)y by tiie entire absence of the white 

 superciliary streak, the animal being absolutely jet-black 

 everywhere. 



With the exception of the Siamang all the so-called species 

 of Hylohates are so closely allied to each other and differ by 

 characters of such slight importance that they seem to be 

 really hardly worthy of specific distinction. Still for the 

 present it seems better provisionally to recognize them as 

 such, and unless they are all united it will be necessary to 

 consider the Hainan form also as distinct, its differential 

 characters being of very much the same value as in the cases 

 of tlie other " s])ccies." I would therefore propose for it tlie 

 name of Ilylobales hainanus. At the same time I confess 

 that I shall not be surprised to see this form reduced later to 

 the rank of a subspecies. 



Two species have, however, also been described as without 

 the superciliary streak, namely U.fuscus* and H. concolor f. 

 The former of these is distinguished from //. hainanus by its 

 brown colour, a[)art from all question of locality, while the 

 latter, based on a young specimen, and that an hermaphrodite, 

 was a native of Borneo, and in all probability was the same 

 as H. Muelleri \. Its youth and abnormality, however, render 

 it impossible for this point to be settled with certainty, and in 

 any case it can have nothing to do with the Hainan species. 



H. hainanus apjjcars to be of about the same size as //. 

 hoolcchy but the type, although nearly, is not quite adult. Its 

 humerus measures 210 millini. in length, its ulna 250, and its 

 femur 185. 



XXIV. — Diagnosis of a new Subsj^ecies of Hare from the 

 Corea. By Olufield Thomas. 



Lepus sinensis corconus, subsp. n. 



Size slightly larger and heavier than in the typical form. 



Colour greyer throughout, the rufous tips to the hairs, 

 especially on the uimp and tail, being rej)lacod by pale 

 greyish fawn. 



* Lewis, Bost. Journ. N. II. i. pt. 1, p. 32 (1834). 



t Harlan, J. Ac. Thilad. v. p. L'3> (ISi?7). 



X See Anderson, Znol. Yiinn. Exp., Miinini. p. 1 1 ^ISrO). 



