XVII CARPAL VIBRISSAE ay 
species. They are, moreover, not peculiar to the Lemurs, but 
exist in the Squirrel, in the Domestic Cat, in the Leopard, in 
Bassaricyon, the Otter, various Marsupials, and doubtless in 
Fig. 258.—A, left arm of Hapalemur griseus 8. «a, Teat; 6, spines on arm gland; ¢, 
tactile bristle. B, left foot of Nycticebus tardigradus. 1 to 5, Pads upon sole of 
foot. (After Sutton, and Mivart and Murie.?) 
many mammals which require a tactile organ, for these hairs are 
associated with a large branch of the radial nerve. 
The Lemurs have at the present time a most remarkable dis- 
tribution. There are altogether about fifty species, referable to 
seventeen genera. Thirty-six species are confined to Madagascar 
! Beddard, Proc. Zool. Soc. 1900, p. 661. 
? On the Arm Glands of the Lemurs, Proc. Zool. Soc. 1887, p. 369. 
