1862.] mr. r. swinhoe on the mammals op formosa. 347 



3. Description of a New Species of Lemur. 

 By a. D. Bartlett. 



(Plate XLI.) 



In size this animal nearly equals the RufFed Lemur {Lemur ma" 

 caco), which animal it also much resembles in form and habits. 



The living specimen now exhibited was purchased for the Society 

 from a dealer in Liverpool, in the month of October 1861, and has 

 been in the Menagerie since that time. It was stated, by the person 

 who brought it to this country, that the natives of Madagascar, from 

 whom it was obtained, said it was of a very rare kind, and that it 

 had been kept as a pet upwards of two years in that country. 



1 have compared this animal with the descriptions and specimens 

 that I have been able to find in the British Museum and several 

 other museums on the Continent, and I feel satisfied that this animal 

 is specifically distinct from any that I have met with. I therefore 

 propose to call it the White-whiskered Lemur {Lemur leucomystax) — 

 a name that will, I think, enable any one to recognize the species, it 

 being remarkable for its long and perfectly white whiskers, in which 

 its ears are almost entirely concealed ; the face is greyish black, 

 darkest on the nose and back part of the head ; the feet are brown, 

 inclining to black on the toes. The prevailing colour of the body, 

 limbs, and tail is reddish brown on a grey ground, darkest on the 

 middle of the back ; on the lower part of the back, at the base of the 

 tail, is a white patch ; the tail is lighter in colour than the body, the 

 underside and tip nearly white ; the belly is greyish white ; the eyes 

 are yellow-brown. On examination, I find the animal is a female ; 

 and I imagine, from her voice, which is a kind of hoarse croaking 

 bark rapidly and frequently repeated, that the male would probably 

 produce a louder and more powerful note. 



I am led to infer this from having repeatedly heard the voice of 

 both male and female of L. macaco. The voice of the male of this spe- 

 cies is certainly very astonishingly powerful, and can be heard a great 

 distance ; while the voice of the female, although loud and discordant, 

 is comparatively weak. Nevertheless it is a very unpleasant series 

 of loud, grunting, grating barks, sufficient to alarm a nervous traveller 

 should he be in the forest at dark and unacquainted with the size 

 and nature of the animal producing these loud and dismal sounds. 



4. On the Mammals of the Island of Formosa (China). 

 By R. Swinhoe, Esq., F.R.S., H.M. Vice-consul at 

 Formosa. 



(Plates XLII., XLTIL, XLIV., XLV.) 



The island of Formosa lies almost due north and south, off the 

 coast of China, in length about 1 20 miles, and varying in breadth 

 from 20 to 80 miles, its nearest point to the adjacent mainland being 



