SIMIA SYNDACTYLA. 



Ord. II-' QuADRUMANES, Cuvier. 1" Famille, les Singes. 



Ord. I. Primates, Linn. Syst. 



Ord. II. PoLLiCATA, Illiger. Fam. 1, Quadrumana. 



SIMIA, Linn. Briss. Schreh. Cuvier. 



Hylobates, Illiger. 



Pit hecus, Geqffroy-Saint-Hilaire. 



Simla aterrima, coUo pectoreque nudis, indice et digito medio podariorum coadunatis. 

 Siamang, of the Malays. 



Simla syndactyla. Sir T. S. Raffles' s Cat. of a Zool. Coll. made in Sumatra, Tr. Linn. 

 Soc. XIII. p. 241, 1821. 



To the following description of the Simla syndactyla it may be proper to 

 premise, that the generic name is employed, by Sir Stamford Raffles, according to 

 the classification of LinniEus. M. Cuvier, in preserving in the order of Quadrumanes 

 the two Genera of Simla and Lemur, has found it necessary to divide each into several 

 Sub-genera ; and the celebrated Illiger, In his Prodi-omus Systematis Mammahum 

 et Avium, has estabhshed among those Quadrumana, which, according to his views, 

 agree in generic characters with the Simla Lar, a distinct genus, denominated 

 Hylobates: this is arranged immediately after the genus Simia, and is distinguished 

 principally by the proportionally greater length of the anterior extremities, which, 

 when the animal stands erect, reach to the ground, by the naked caUosltles on the 

 buttocks, by a comparatively short muzzle, and a facial angle of sixty degrees. 

 Agreeably to the Tableau des Quadrumanes of M. Geoffroy-Salnt-HUaire, contained 

 m the XIX?- Volume of the Annales du Museum, the Simla syndactyla belongs 

 to the genus Pithecus. 



The Simla syndactyla, as well as the Tupaia tana, which is described In the 

 preceding article, form part of the Zoological CoUectlon which was forwarded to 

 the Honourable East India Company, by Sir Stamford Raffles, from Sumatra; 



