PHYSICAS E NATURAES 



95 



7. On a new or criticai species of Monkey, 

 and a sytcroalica! arrangement of a groiip of Cercopilhecus 



BY 



PROF. F. MATTOZO SANTOS 



In the year 1799 Audebert, in his Histoire naturclle des Singes et 

 des Makis, fam. 4, sect. 2, pi. 13, typified and described, under the 

 designation of Cercopithecus ascanias, a monkey very remarkable among 

 the Cercopilhecus whitespotted on the nose for its having face blue. 

 In 1849 Gray published in the Proçeedings of the Zoological Society of 

 London, pari. xvu, p. 8, fig. 2 a diagnosis, and printed a design of a 

 Cercopithecus, which he denominated C. ludio, and which Schlegel 

 (Monographie des Singes, p. 88) classiíles as identical with Audeberfs 

 C. ascanias: therefore according to the latler naturalista opinion, there 

 is a single species of Cercopithecus with a white spot on its nose, 

 and blue face. 



Confronting Audeberfs, Gray's (1. c. and Cat. of Monkeys, Lemurs 

 and Fruit-eating bats in the British museum 1870, p. 21,6) and Schle- 

 gel's (1. c.) discriptions with a Monkey offered to the Museum of Lis- 

 bon by Mr. José Augusto de Sousa to whom it had been given by Ma 

 jor J. Fortunato Barreto, who got it from Quimpampala, fazenda 6 

 miles from Ambriz, the Monkey being then about six months old, I 

 have found in the latter the following characteristics different from 

 those ascribed by Audebert and Schlegel to the C. [ascanias and by 

 Gray to the C. ludw: 



i.° — the ears are neither naked, nor ílesh coloured (Audebert): 

 they are covercd ali over by reddish brown slrong hairs, except on the 

 anterior region where they are blue violet; 



2.° — on the temples sky coloured hairs, neither white (Aude- 

 bert), nor black (Gray); 



3.° — the under lip is puré white, not flesh coloured (Audebert); 



4.° — the chin and throat are white, not deep grey; 



