32 Christmas Island. 



M. celelensis, Gray.^ Mammae 1 — 2 = 6. 'No dorsal piles. 

 Pront edge of anterior zygoma -root not projecting. 

 Palatal foramina short. 

 Celebes. 

 M. xanthurus, Gray.^ Mammae 1 — 2 = 6. Long dorsal piles 

 present. Pront of zygoma -root but little projecting. 

 Palatal foramina long. 

 Celebes. 

 M. everetti, Giinth.^ Pur long, but the piles not enormouslj^ 

 lengthened. Pront of zygoma - root conyex. Palatal 

 foramina long. Bullae very large. 

 Philippines. 

 M. meyer% Jent.* Pur without lengthened piles. Supra- 

 orbital edges much developed. Pront of zygoma-root 

 slightly convex. Palatal foramina short. Teeth very 

 large. 

 Celebes. 

 M. muelleri, Jent.^ Mammae 2 — 2 = 8. No dorsal piles. 

 Tail unicolor. Pront edge of zygoma convex. Palatal 

 foramina short. Teeth rather small. Bullae medium. 

 Sumatra and Borneo. 



"This last does not properly belong to the present group of 

 species, but is only introduced to complete the list of those of 

 which it is necessary to mention the distinguishing characters 

 when describing M. macleari as new. All these species also differ 

 from M. macleari in having the general colour grey or yellow 

 instead of rufous. No other described species could possibly be 

 confounded with the present most interesting new form, with which 

 I have much pleasure in connecting the name of Captain Maclear, 

 of H.M.S. 'Plying Pish,' to whom the Museum is indebted for 

 the Christmas Island specimens." 



To this description it may be added that in the young the under 

 surface is much lighter coloured, and in one specimen is quite 

 white, the inner side of the fore and hind limbs being nearly so. 

 In the young, moreover, the long piles are not fully developed, 

 though they are visible among the fur. 



There is considerable variation in colour in this species. In 

 some specimens the back is darker and less rufous and the long- 

 piles are less developed than in the typical form. 



1 P.Z.S., 1867, p. 598. 



2 Loc. cit. 



3 P.Z.S., 1879, p. 75. 



* IS'otes Leyd. Mus., i, p. 12 (1878). 

 5 Op. cit., ii, p. 16 (1879). 



