SIMIAD.E. 525 



changed, afterwards, for that of Roloway, by which he was informed it was 

 called in Guinea, whence his specimens were brought. By this latter 

 title it was received into the posthumous Supplement to Buffon, published by 

 Lacepede ; and Gmelin, Pennant, and other compilers have adopted it, as 

 forming a distinct species from the Diana, a distinction without a 

 difference. We cannot, however, agree with M. Fred. Cuvier, in con- 

 sidering the Monkey figured by him under the name of Diana, in his 

 splendid Histoire Nat. des Mammiferes, as belonging to this species, of 

 which it has none of the characteristic marks. It appears to us to be 

 entirely new ; but, at the same time, to be much more closely allied to the 

 Cercopithecus Mona, than to the subject of the present article." 



With respect to the animal figured by Fred. Cuvier, under the title of 

 Diana (the original specimen of which, in the Paris Museum, the Author 

 of this work has carefully examined), it is, without hesitation, to be 

 assigned to the C. leucampyx of Fischer, a species which has usually 

 been considered as doubtful, and which, together with the Semnopithecus 

 Johnii, has been recently named afresh. 



GENERAL HISTORY. The Diana is rarely brought alive to Europe ; 

 nor, indeed, are its skins very common in collections. The author only 

 observed one specimen in the Paris Museum from the Gold Coast, Africa. 

 Three are in the museum of the Zoological Society of London ; of these, 

 one specimen (No. 32, Cat. Mamm. 1838) died, some years since, in the 

 menagerie of the Society, and is the original of the figure and description 

 in the Gardens, fyc. delineated, p. 34. The other two, 32 a, 32 b, Sup. 

 Cat. Mamm. 1839, are from Fernando Po. Of the habits of the Diana 

 in a state of nature nothing is correctly ascertained. In captivity, like 

 the rest of its tribe, it is gentle, lively, active, and familiar, while young ; 

 but, as age advances, it becomes reserved and treacherous. The beauty of 

 its colouring, and the gracefulness of its form, render it one of the most 

 attractive of the genus ; but its frontal crest of white hairs, and its white 

 peaked beard, " of formal cut," give a singular aspect to its physiognomy. 

 This latter ornament it has been observed, as Mr. Ogilby states, to be 

 solicitous in keeping neat and clean ; when about to drink it takes the 

 beard in its hand with amazing gravity, and holds it back, in order to 

 prevent it from dipping into the fluid. On one of these occasions, when 

 that naturalist laughed at the action, which struck him with a sense of the 

 ludicrous, the animal suddenly looked up in great astonishment, but 

 instantly penetrating, as it appeared, the cause of what it considered a 

 personal insult, flew at him with great malice, and was only prevented 

 from revenging the indignity by the shortness of the chain which attached 

 it to a pole for security. In the same room, fastened by a chain 

 and running ring to an adjacent pole, was a small prehensile-tailed 

 American Monkey (Cebus) ; the distance between the two animals being 



