420 
1. Macacus ocreatus. (The Ashy-black Macaque.) (Pl. 
LXXXiII.) 
Papio ocreatus, Ogilby, P. Z.S. 1840, p. 56; Ann. N. H. vi. 517. 
Macacus fusco-ater, Schinz, Syn. Mamm. p. 58; Wagn. Saug. v. 
p- 99. 
We havea male Macaque, obtained by exchange out of a travelling 
menagerie in the summer of 1858. It was somewhat paralysed in 
the hind-quarters when received, and does not promise to be very 
long-lived. The species seems certainly the same as that described 
by Mr. Ogilby before the Society in 1840 from a specimen observed 
living in a menagerie, and is probably identical with Macacus fusco- 
ater of Schinz, in which case, however, Mr. Ogilby’s name has pre- 
cedence. It belongs strictly to the division of Macacus in which 
the tail is very short, sometimes reduced almost to a tubercle as in 
M. arctoides* and M. maurus. There is no example of this species 
in the British or French National Collections ; but the Leyden Mu- 
seum contains two specimens (labelled, if I recollect right, maurus), 
which, I believe, belong to it. The example in the Frankfort col- 
lection (Schinz’s type) is said to have been brought from Celebes. 
Wagner’s diagnosis, slightly altered, “ Niger, artubus intus ante 
brachiis tibiisque cinereis, cauda brevissima,” suits our specimen 
very well, and is quite sufficient to distinguish the present species 
from its allies. 
2. Macacus maurus. (The Moor Macaque.) 
A young male Macaque, lately purchased from a dealer, seems to 
belong to this species as figured by F. Cuvier}. It belongs strictly 
to the same group of Macacus as the last species, having the tail re- 
duced to a mere naked tubercle, hardly an inch in length. The hair 
is of a uniform brown without annellations, and the naked face black. 
Two examples of the same animal, rather lighter in colouring, are in 
the British Museum, lately acquired at the sale of Lidth de Jeude’s 
collection. The locality of this Macaque is not accurately known ; 
but the occurrence of this example is interesting as tending to con- 
firm the species, which the French authorities themselves have cha- 
racterized as “une esptce trés-douteuse§.’’ It appears to be de- 
cidedly different from Macacus arctoides of Cochin China. 
3. CercoriTHEcus RUFO-viRIDIS. (The Rufous-backed Mon- 
key.) 
* Tt may be remarked that Papio melanotis, Ogilby (of which the type is now 
in the British Museum), is certainly not Macacus speciosus, as attempted to be 
shown by Wagner, but more nearly resembles M. aretoides, having a very short 
tubercle for a tail. In M speciosus of Japan the tail is considerably longer and 
covered with hair. 
+ F. Cuvier and St. Hil. Mamm. livr. 4. 
+ Mr. Bartlett informs me that there are two Monkeys of the same species, 
only rather larger, and darker in colouring, alive in the Zoological Gardens at Am- 
sterdam. 
§ I. G. St. Hilaire in Cat. Mamm. Mus. Paris, p. 31. 
