Page:The Fauna of British India, including Ceylon and Burma (Mammalia).djvu/41

Rh

Size smaller than that of other anthropoid Apes; the largest species, H. syndactylus, not much exceeding three feet in height. Body and limbs slender; arms, hands, and feet exceedingly long, the arms being so much longer than the legs that the hands reach the ground when these animals stand upright on their feet—a position that is assumed habitually by this genus, and by this alone, amongst the Simiidæ, when walking. Thumb and great toe deeply separated from the next digits. Ischial callosities (naked thickened



skin on each buttock) present, but small. There are generally 13 pairs of ribs, 5 lumbar, 3 sacral, and 3 or 4 caudal (coccygeal) vertebræ; so that there being, as usual, 7 cervical vertebræ, the vertebral formula is C. 7, D. 13, L. 5, S. 3, C. 3–4.

Dentition: i. $4⁄4$, c. $1—1⁄1—1$, pm. $2—2⁄2—2$, m. $3—3⁄3—3$.

 


 * Simia hoolock, Harlan, Trans. Am. Phil. Soc. iv, p. 52, pl. 2 (1834).
 * Hylobates hoolock, Blyth, Cat. p. 4; Sclater, P. Z. S. 1870, pl. v, fig. 2; Blyth, Mam. Birds Burma, p. 1; Anderson, An. Zool. Res. p. 1; id. Cat. p. 26.

Uluk, Hindi; Myouk-lwai-gyau and Tuboung, Burmese of Arakan.