period of gestation is about seven months, only a single young one, as a rule, beiug produced at a birth. They become adult at the age of 4 or 5 years, but breed earlier.
Synopsis of Indian, Ceylonese, and Burmese Species.
| A. |
Tail less than ¾ of head and body together.
|
| a. |
Colour black, a grey beard and ruff round face
....................................................................................................................................................................................................................................................
|
M. silenus, p. 16. |
| b. |
Colour brown, no beard or ruff.
|
| a'. |
Tail about half as long as the head and body.
|
| a''. |
Hair straight, buttocks naked around callosities
....................................................................................................................................................................................................................................................
|
M. rhesus, p. 13. |
| b''. |
Hair wavy or woolly, buttocks clad up to edge of callosities
....................................................................................................................................................................................................................................................
|
M. assamensis, p. 15. |
| b'. |
Tail about ⅓ as long as the head and body, and very slender.
|
| a''. |
A distinct horseshoe-shaped crest on the crown
....................................................................................................................................................................................................................................................
|
M. leoninus, p. 18. |
| b''. |
No distinct crest
....................................................................................................................................................................................................................................................
|
M. nemestrinus, p. 20. |
| c'. |
Tail very short, only one or two inches in length
....................................................................................................................................................................................................................................................
|
M. arctoides, p. 17. |
| B. |
Tail more than ¾ of head and body together.
|
| a. |
Hair of crown lengthened and distinctly radiating from middle.
|
| a'. |
General colour greyish brown, not rufous
....................................................................................................................................................................................................................................................
|
M. sinicus, p. 23. |
| b'. |
General colour rufous or yellowish
....................................................................................................................................................................................................................................................
|
M. pileatus, p. 24. |
| b. |
Hair of crown neither lengthened nor distinctly radiating
....................................................................................................................................................................................................................................................
|
M. cynomolgus, p. 21. |
3. Macacus rhesus. The Bengal Monkey.
- Simia rhesus, Audebert, Hist. Nat. Singes, 2e fam. p. 5, pl. i (1797).
- Simla erythræa, Schreber, teste Shaw, Gen. Zool. i, p. 33 (1800).
- Macacus (Pithex) oinops, Hodgs. J. A. S. B. 1840, ix, p. 1212.
- Inuus rhesus, Blyth, Cat. p. 8; Jerdon, Mam. p. 11.
- Macacus rhesus, Anderson, An. Zool. Res. p. 55; id. Cat. p. 67.
Bandar, H.; Markat, Beng.; Wándar, Puriz, Púnj, or Ponj, Kashmir; Gye, Ho Kol.
Fur of moderate length (rather long in Himalayan specimens) and straight, not wavy or woolly. Hair of crown not radiating from centre. Tail two fifths to one half the length of the head and body, tapering, not tufted at the end. Caudal vertebræ usually 17 or 18. Ears naked. Buttocks naked for some distance around the callosities.
Colour. General colour hair-brown with a greyish tinge, the hinder quarters being generally rufous or yellowish, especially in adults. The hair is ashy towards the base, and more or less annulated and tipped with light brown throughout the upper parts, giving a minutely speckled appearance. Lower parts scarcely paler.
