071 the Cihhon of tlw. TsJaiuJ of TLu'nan. 145 



var. Karelim'i, it is clear lliat the form longipea cannot be 

 iij)lield even as a subspecies. The measurements are here 

 given of tlie specimen referable to T. luufjipes [a) and of a 

 normal M. cristata,\i\Y. Karclimi {h) , both males from Naples. 



a. h. 



niillim. millim. 



Total length 108 108 



l""iiim snout to cloaca 60 56 



I lend (skull) 14 14 



Width of heiul 11 11 



Fore lin.h 25 22 . 



Tliird iin-er 8 



Hind limb 28 22 



Third toe 10 7 



Tail 48 52 



It must be borne in mind that the typical form also varies 

 considerably as regards the elongation of the digits, and that 

 Strauch's statement as to the proportions of the limbs in M. 

 cristata a])plies only to females, which have the digits much 

 shorter than in the males. It is quite clear, from tiie 

 measurements given on p. 46 of his memoir, that the speci- 

 men from the Gov. Kursk, with which he compares the (male) 

 type specimen of T. longipes, is a female ; it need hardly be 

 added that such a course, in a group of animals in wliich the 

 secondary sexual characters are so highly developed, can only 

 convey a fallacious impression, especially if no mention is 

 made of the sexes of the specimens the measurements ot 

 which are tabulated. 



XXIII. — Note on tlw Gihhon of the Island of Hainan 

 (llylobates hainanus, sj>. n.). P>y Oldfikld Thomas. 



In his paper on the mammals of Hainan * Mr. Robert 

 Swinhoe has given an account, mainly compiled from native 

 authorities, of the Gibbon which inhabits that island ; but no 

 specimen appears hitherto to have been brought to Europe. 

 The animal was referred by Mr. Swinhoe, with some doubt, 

 to B^Iobates ptieaiiis, Gray, the Cambodgian species; but as 

 he was unable to obtain a specimen, this reference has never 

 been confirmed. 



At length a specimen of this Gibbon has been presented to 

 the British Museum by :Mr. W. T. Lay, to whom it was 



* Proc. Zool. Soc. 1870, p. 224. 

 Ann. iL ^fac/. xY. Risf. Ser. 6. Vol. ix. 10 



