MACACrS. 45 



Genus Macacus, Desmarest. 

 *Macacus arctoides, Is. Geoff. St.-Hilaire, Plates I and II. 



Macacus speciosus, F. Cuv. Hist. Nat. des Mammif. Fev. 1825^ pi. xlvi. ; Lesson,, Man. de Mamm. 



1827, p. 43 J Fischer, Syn. Mamm. 1829, p. 30; Is. Geoff. St.-Hil. Zool. Voy. de Beknger, 



1834, p. 63 ; Wagner, Schreber, Saugeth. Suppl. vol. i. 1840, p. 146 (in part) ; Lesson, Sp. des 



Mammif. 1840, p. 102 ; Gervais, Hist. Nat. des Mammif. 1854 (in part), p. 93 ; Blyth, Journ. 



As. Soc. Beng. vol. xliv. 1875, ex. no. p. 6. 

 Macacus arctoides, Is. Geoff. St.-Hil. Mag. de Zool. 1833, cli. pi. ii. (adult) ; Zool. du Voy. de 



Belanger, 1834, p. 61; Arch, du Mus. vol. ii. 1843 (in part), p. 575; Method, des Mammif. 



1851, p. 31 ; Schinz, Syn. Mamm. vol. i. 1844, p. 58 ; A. M.-Edwards, Rech. des Mammif. 



1868-74, p. 246; Sclater, Proc. Zool. Soc. 1872, p. 203; Murie, Proc. Zool. Soc. 1872, 



pp. 770, 771. 

 Macacus maurus, Is. Geoff. St.-Hil. Voy. de Belanger, Zool. 1834, p. 63 ; Lesson, Sp. des Mammif. 



1840, p. 98. 

 Papio melanotus, Ogilby, Proc. Zool. Soc. 1839, p. 31 ; Schinz, Syn. Mamm. vol. i. p. 59 (in part). 

 CynopitTiecus speciosics, Lesson, Sp. des Mammif. 1840, p. 102. 

 Inuus {Maimon) arctoides, Wagner, Schreber, Saugeth. Suppl. vol. i. 1840, p. 146. 

 Macacus ur sinus, Gervais, Hist. Nat. des Mammif. 1854, p. 93. 

 Inuus {Inuus) arctoideus, Wagner, Schreber, Saugeth. Suppl. vol. v. 1855, p. 57. 

 Pitheeus (Macacus) arctoides, Dahlbom, Stud. Zool. Fam. Reg. An. 1856, pp. 116, 118. 

 Pithecus arctoides, Blainville, Osteogr. Mamm. vol. i. p. 44, 1839-64, atlas ii. pi. vii. (skull). 

 Macacus melanotus, Gray, Cat. Monkeys and Lemurs, B. M. 1870, p. 29. 



Macacus brunneus, AndeTS. Proc. Zool. Soc. 1871, p. 628; 1872, p. 203, pi. xii. (juv.) ; 1874, p. 652 

 Inuus speciosus, Blyth, Journ. As. Soc. Beng. vol. xliv. 1875, ex. no. p. 6. 



The type of M. arctoides was an adult male from Cochin China, characterised 

 by a red face, very short, stumpy tail, and by long hair, each individual hair being 

 " plusieurs fois anneles de brun et de roux clair." The type of M. melanotus, 

 Ogilby, was a young male said to have been obtained from Madras, also dis- 

 tinguished by the first two characters of the previous specimen, but with apparently 

 uniformly brown fur, passing nearly into black on the head and back. The type of 

 M. hrunneus had also a short, stumpy tail and red face, and when it was described, 

 the fur was wholly brown without annulations, the animal having been brouo-ht 

 from the hill region on the western frontier of the province of Yunnan, China. 



When I described the last-mentioned monkey, I had not access to Geoff. St.- 

 Hilaire's figure of M, arctoides in the "Magasin de Zoologie," as the volume was 

 not in any Indian library ; and I hesitated to regard it as identical with M, melano- 

 tus, Ogilby, considering that the locality from whence M. melanotus was said to have 

 come has a fauna perfectly distinct from the hill region of Western China.' 



^ Dr. Sclater has recently directed my attention to a monkey from Siam in the Zoological Gardens, which 

 exactly agrees with M. melanotus and M. hrunneus, and, like these types, it is quite a young individual. When 

 describing M. hrunneus, I pointed out the structurally rudimentary character of the terminal caudal vertebra, and 

 that the individual which manifested these characters was in the habit of sitting on its tail. This observation was 

 called in question by Dr. Murie ; but a careful observation of this Siamese individual reveals a similar habit, and 

 doubtless associated with it will be ultimately found a like degradation of the terminal caudal vertebra. 



