Part 64

Cynocephalus hamadryas, Fr. Cuvier, Hist. Nat. Mammif., p. 129, pl. 46 ().

Papio hamadryas, Geoffr., Ann. Mus., xix., p. 103 (1812); Schl., Mus. Pays Bas, vii., p. 129 (1876, in part).

Hamadryas ægyptiaca, Gray, Cat. Monkeys Brit. Mus., p. 34 (1870).

CHARACTERS.--MALE.--Size of a large Pointer Dog; muzzle long; nose slightly longer than the upper lip; nostrils terminal, separated by a furrow above and in front; face naked, the ridges parallel to the nose, and far less prominent than in the Mandrill or Drill; eyes deep-set; brows overhanging; ears naked; a large mane, mantle-like, on the throat, neck, {273}shoulders and middle of the back; whiskers long, directed backwards, almost concealing the ears; hair on the lower back, arms, thighs and legs short; callosities large, and the surrounding part of the buttocks nude; tail slightly shorter than the body, arched at the basal third, then descending perpendicularly to its termination, which is tufted; under surface of body and inner aspect of limbs thinly haired; fourth finger and second toe strongly clawed.

Face flesh-coloured, darker round the margins of the mouth, lighter round the eyes; snout, chin, eyebrows, ears, and naked parts of the hands and feet, dark flesh-colour; general colour of the fur over the body ashy-grey, lightly washed with greenish--the hairs being ringed with alternate bars of black and greyish-green; the head, the mane on neck and shoulders, and the front part of the body ashy-grey, washed with greenish; whiskers greyish-white; hind part of body paler than the fore; forearms and legs greyish-black or almost black; under side of body greyish-white; tip of tail darker; callosities and neighbouring nude parts bright scarlet. Length of body, 26 inches; of tail, 15 inches; height, when standing erect, 4 feet; when sitting, 2½ feet.

FEMALES AND YOUNG MALES.--Similar to adult males in coloration, but having no mane; the females of the same size as the males.

Both sexes possess laryngeal pouches or air-sacs, extending down the neck nearly to the arm-pits, and connecting with the windpipe by a single opening above the larynx.

Facial portion of skull proportionately larger than the cranial. Top of skull and forehead flattened; brain-case and front of cerebrum small and intruded on by the orbits; the latter directed forwards and outwards.

{274}DISTRIBUTION.--Arabia, from the plains up to 9,000 feet; Abyssinia, and the Soudan.

HABITS.--The Arabian Baboon, or "Tartarin," as it is often called, is gregarious like its allies, occurring in troops of from two hundred and fifty to three hundred individuals. When full-grown, they are very bold and ferocious. They feed on fruits, berries, and the tubers of an edible grass; but their chief food consists of insects, and such small animals as they find under stones, or among the rocky cliffs and ravines, where they usually dwell, for they seem to avoid the wooded country.

They have a loud voice, uttered as a grunting bark. They are said to be extremely intelligent, "astonishingly clever fellows," as one traveller records:--having chiefs whom they obey implicitly, and possessing a regular system of tactics in war, with the posting of sentinels on pillaging expeditions. They have variously modulated cries, to warn, to indicate safety or false alarm, or to direct the general movements or conduct of the troop. "The old males," as Mr. Blanford narrates, "are always most conspicuous animals, all the fore part of their body being covered with long hair. They usually take the lead when the troop is moving; some of them also bringing up the rear; others placing themselves on high rocks or bushes and keeping a sharp look-out after enemies. A troop collected on a rocky crag presents a most singular appearance. I several times saw large numbers assembled around springs in the evening in the thirsty Shoho country.... On such occasions every jutting rock, every little stone more prominent than the rest, was occupied by a patriarch of the herd, with the gravity and watchfulness befitting his grizzled hair, waiting patiently until the last of his human rivals had slaked his thirst and that of his cattle. Around, the females were mainly occupied in taking {275}care of the young, the smaller Monkeys amusing themselves by gambolling about." The Arabian Baboon climbs heavily, but when moving quickly on the ground has a regular steady gallop.

This is the Sacred Monkey of the ancient Egyptians, and its likeness is often found engraved on their various temples and monoliths. "The Cynocephalus Ape," as Sir Gardner Wilkinson writes, "which was particularly sacred to Thoth, held a conspicuous place among the sacred animals of Egypt, being worshipped as the type of the God of Letters, and of the Moon, which was one of the characters of Thoth.... Sometimes a Cynocephalus placed on a throne as a god, holds a sacred Ibis in his hand; and in the judgment-scenes of the dead it frequently occurs, seated on the summit of a balance, as the emblem of Thoth, who had an important office on that occasion, and registered the account of the actions of the deceased. The place where this animal was particularly sacred was Hermopolis, the city of Thoth. In the necropolis of the capital of Upper Egypt, a particular spot was set apart as the cemetery of the Sacred Apes."

XI. LANGHELD'S BABOON. PAPIO LANGHELDI.

Cynocephalus langheldi, Matschie, S. B. Ges. Nat. Freunde, Berlin, 1892, p. 233.

CHARACTERS.--Hair of back long and coarse; that of the hinder quarters shorter. Length of body, 29½ inches; of tail, 18 inches.

General colour, dirty olive-grey--the hairs brown at the base, then yellowish-grey, ringed further up with black and yellowish-grey and tipped with black; the long and coarse hair {276}of the back lighter; chin greyish-white; the hind-limbs externally washed with brownish-yellow; the upper side of the hands and feet olive-yellow; tail brownish-grey; under side of body and inside of limbs silvery-grey.

The bright olive-grey of the upper side and the silver-grey under side distinguish this species from all others; it is most nearly related to C. babuin.

DISTRIBUTION.--East Africa, from the Rovuma river to the Pangani, and extending to the Victoria Nyanza.

THE GELADA BABOONS. GENUS THEROPITHECUS.

Theropithecus, Is. Geoffr., Arch. Mus., ii., p. 576 (1841).

This genus has been established for the reception of two species which differ from the true Baboons (Cynocephalus) in having the nostrils placed on the side of the snout, instead of being terminal and opening, Dog-like, on the blunt face of the truncated nose.

I. THE GELADA BABOON. THEROPITHECUS GELADA.

Macacus gelada, Rüpp., Neue Wirbelth. Säugeth., p. 5, pl. 2 (1835); Schl., Mus. Pays Bas, vii., p. 107 (1876).

Theropithecus gelada, Is. Geoffr., Arch. Mus., ii., p. 576 (1841).

Theropithecus senex, Schimp. et Puch., Rev. et Mag. de Zool., 1857, p. 51.

Gelada rüppellii, Gray, Cat. Monkeys Brit. Mus., p. 33 (1870); Garrod, P. Z. S., 1879, p. 451.

CHARACTERS.--MALE.--Body large and massive; head oblong; face produced, rounded, and nude below the superciliary ridge; nose long and depressed in its middle region, but elevated at {277}the tip upon the deep upper lip; head crested, with long hair, rising from the superciliary ridge, and descending to a long and mantle-like mane on the back of the neck and shoulders, where the hair is longest, down to the loins behind, and as far as the elbow joints in front; whiskers very long, directed backwards over the ears, and downwards from the corners of the mouth; no beard; chin nude; a patch on the chest and one on the throat naked, separated from each other by a haired bar 1½ inches broad; tail long, round, erect for its basal third, then falling straight down as in other Baboons, and terminating in a long thick tuft.

Face, hands, feet and callosities deep black; nude chest-spaces florid; hair of whiskers, neck-portion of mane, sides, arms, and lower margins of the mantle-like mane dark sooty chocolate-brown; breast, chest, shoulders, fore-arms, hind quarters and tail (except the terminal tuft) black; tail-tuft brownish-black, with a few white hairs; abdomen paler brown than the hair generally, though still dark; hair bordering the nude chest-spaces iron-grey from the presence of numerous short grey and white hairs; nipples close together on the lower nude chest-space; nails of hands longer than those of the feet. Length of the body, 29 inches; of tail, 24¾ inches; to tip of terminal tuft, 32 inches.