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of the animals , independent of sex but perhaps not of age. In all , 
the face and ears are nude and black, the buttocks surrounding ischia 
rosy, the tail short, stumpy and curled. In some animals, generally 
the smaller ones, the general colour is brownish black, in others, 
generally the older ones, the trunk above and below brownish or 
brownish black or sooty black on the upper parts. The hmbs of the 
same colour, only the hind parts of the thighs ashy, or the whole 
limbs have this ashy hue or are greyish externally. In one very 
large specimen (N". 333) the colour was brownish black with two 
greyish patches on the gluteal-streak. 
One full grown female (N°. 315) 43,51 cm. long from vertex to anus , 
with a brownish coloured young one, had white hairs on the black 
face, white spots on the black ears, hairs on the vertex and on 
the parts surrounding the anus white, trunk brownish black. Limbs 
with white patches on the medial parts and nearly without hair, 
lateral parts black with only slight downy white hairs. In another 
full grown female (N°. 334) the hmbs are nearly without, hair, those 
on the vertex white, on the trunk greyish. The skin of the face, ears 
and limbs is white with black spots. The palm of the hands and the 
sole of the feet are nearly white. 
These last two cases belong to a sort of albinisme and are of no 
special interest for us. Of more importance are the different colours 
described above that may be observed in different specimens living 
together. 
They agree in all parts with the descriptions given by various 
authors of Macacus ocreatus and of Macacus maurus. The last is called 
without any authenticity the Bornean ape. 
The history of this ape is as follows: F. Cuvier i) gives 1823 a 
figure ,,que nous devons à M. A. Duvaucel et qui (le singe) se trouve dans 
l'Inde". Furtheron he adds that it is „propre au continent de l'Inde" 
and caUs this specimen, that he only knew from the figure of Duvau- 
cel, Macacus maurus. 
SoLATER 2) was then the first that saw a living specimen that „seems to 
belong to Macacus maurus as figured by Cuvier Having the tail 
reduced to a mere naked tubercle, hardly an inch in length. The hair 
1) P. Cuvier: Hist. nat. des Mammifères. 1823, pl. 45. 
2) ScLATEE: Proc. Zool. Soc. London. 1860, pag. 430, 
