248 Miscellaneous. 



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 hack part of the head ; the feet are brown, 

 inclining to black on the toes. The prevaiUng 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. — 

 Proc. Zool. Soc. Dec. 9, 1862. 



On a New Sjpecies of Chameleon. By Dr. J. E. Gray, F.R.S. &c. 



Chamceleo IcBvigatus. 



Grey or bluish in spirits. Scales small, flat, subequal, uniform ; 

 dorsal line nearly smooth, scarcely crested. Belly with a crest of 

 larger acute white scales. Occiput slightly raised in the centre by 

 a slight keel ; the superciliary ridges and the central keel scarcely 

 dentated. The legs elongate, very slender. Hab. Khartoom. 



This species is very like Chamtsleo senegalensis ; but the scales on 

 the ridges of the head and the ridges of the back are of the same 

 size as those of the neighbouring parts, and therefore do not form 

 any appreciable crest. The occiput is rather differently shaped, the 

 hinder central keel being a little more prominent. The scales of the 

 head, body, limbs, and tail are smaller and less raised. The limbs 

 are longer and more slender. 



This species is very different from the Chamceleo affinis of Riippell 

 (which is the C. abyssinicus of the Berlin Museum), from Abyssinia, 

 which differs from both C. senegalensis and C. Icevigatus in the scales 

 being much larger and more convex, and in the scales of the ridges 

 of the head and back being larger than those on the neighbouring 

 parts, so as to form distinct crests ; and in C. affinis the body is 

 grey or blackish, with two or three broad, irregular-shaped, opake- 

 white spots, forming an interrupted streak on each side of the back 

 of the animal.— Proc. Zool. Soc. March 24, 1863. 



