SIMIAD.E. 443 



Height, when erect, two feet eight inches and a half, 



Original specimen (female), in the museum of the Zoological Society, 

 No. 6 of Catalogue of Mamm. for 1838. 



The recognition of the H. Choromandus, as a distinct species, is due 

 to Mr. Ogilby, whose observations on it will be found in the Proceedings 

 of the Zool. Soc. of London, for 1837, p. 68; the museum of which society 

 contains the only known example. This, together with a specimen of the 

 Hoolock, obtained from the same locality, was presented, many years since, 

 by the late General Hardwicke ; and both were regarded as specifically 

 identical, the one (H. Choromandus) as the female, and the other as the 

 male. The identity, however, of the H. Choromandus, and of the Hoolock, 

 as Mr. Ogilby well observes, is " sufficiently disproved, not only by the 

 fact, that both specimens in question are of the same sex (females), and from 

 our being perfectly acquainted with both sexes of the Hoolock, but, like- 

 wise, by the marked difference of colour and external structure exhibited 

 by the two animals. The greater height of the forehead, and prominence 

 of the nose, in the new species, are alone sufficient to distinguish it from 

 all the other Gibbons ; while its ashy brown colour, and large, black 

 whiskers, render it impossible to confound it with the Hoolock, which has 

 fur of a shining black, and a pure white band across the forehead." 



GENERAL HISTORY. The circumstances attendant upon the capture 

 of the specimen from which the description is taken, and all details 

 respecting the habits of the animal in its native region, are alike utterly 

 unknown. 



HARLAN'S GIBBON. 



HYLOBATES CONCOLOR. 



Simla concolor HAKLAN, in Journ. of the Acad. of Nat. Sciences of Philadel- 

 phia, vol. v. p. 229. Oct. 1826. 

 Hylobates Harlani LESSON, in Bull, des Sciences Nat. torn. xiii. p. 111. 



SPECIFIC CHARACTERS. Fur full, crisp, and universally black. 

 LOCALITY. Borneo. 



DESCRIPTION. The hair is black, thick, woolly, and frizzled, covering 

 all parts except the palms, the soles, the face, and ears ; these, and the 

 skin generally, being also black ; the orbits are prominent ; the nose is 

 elevated ; the arms are very long ; the guttural sac is wanting. 



In the year 1826, Dr. Harlan published the first and only account of 

 this singular Gibbon, from a specimen which had then recently died at 

 New York, after having lived in that city four or five months. In figure 

 it resembled the rest of the genus ; in height it measured two feet two 

 inches ; and its arms were one foot six inches long. It was said to be 

 rather less than two years of age at its death. The countenance of this 



