CATALOGUE. O 



of the Hoolock in its wild state, Edward Blyth, Esq., gives many in- 

 teresting details in the thirteenth volume of the Journal of the Asiatic 

 Society of Bengal, pp. 464, 465. 



3. HYLOBATES VARIEGATUS, Mutter, over de Zoog- 

 dieren von den Indischen ArchipeL, p. 47. 1840. 



Hylobates agilis, Fred. Cuv., Mamm. lith. liv. 32, c. fig. 

 Hylobates Rafflesii, Geoff., Coursd'Hist. Nat.Lect.T, 1828. 

 Pithecus agilis, Desmar., Mamm. Suppl. p. 532. 1822. 

 UNGKA-PUTI and UNGKA-ETAM, Raffles, Trans. Linn. Sot. 

 XIII. p. 242. 1822. Zool. Journ. IV. p. 106. 



HAB. Sumatra. 



A. B. presented by Matthew Lovell, Esq., Bengal Retired 

 Medical Establishment. 



Mr. Martin's remarks on the synonymy of the Agile Gibbon (Nat. 

 Hist, of Monkeys, p. 425, &c.) tend to clear up much of the confusion 

 in which it is enveloped ; but while he considers the Hylobates variegatus 

 of Kuhl (Beitr. p. 6, 2) as a variety of the Simia lar of Linnaeus, 

 Dr. Miiller expresses a decided opinion 'that the Hylobates agilis of 

 Fred. Cuvier, and the Hylobates Rafflesii of Geoffroy, may be united as 

 synonyms of the Hylobates variegatus of Kuhl ; in confirmation of 

 which he states that the more recent descriptions of Hylobates lar refer 

 to the black variety of Hylobates variegatus, the Ungka-etam. And he 

 further points out the numerous and striking varieties of colour which 

 are met with in this species, and which are so multifarious, that two 

 individuals are rarely found which have the same covering. 



The Ungkas, both the puti and the etam, possess in a high degree 

 as well the favourable as the mischievous propensities of the Gibbons. 

 Sir T. S. Raffles states, " that it is a general belief among the people 

 of the country where it resides, that it will die of grief, if, when in 

 captivity, the preference is given to another ; in confirmation of which 

 I may add, that one in my possession sickened under these circum- 

 stances, and did not recover until relieved from the cause of the vexa- 

 tion, by his rival, the Siamang, being removed into another apartment." 

 M. Duvaucel informs us that the Ungka-puti usually lives hi pairs, and 

 possesses extraordinary activity ; at the same time it is gentle and 

 timid. The velocity of its movements is wonderful ; it escapes like a 

 bird on the wing. Scarcely does it perceive danger, but it is already 

 far away. Ascending rapidly to the top of a tree, it then seizes a 

 flexible branch, swings itself two or three times to gain the requisite 



