102 ALLENS NATURALIST'S LIBRARY. 



COQUEREL'S SIFAKA. PROPITHECUS COQUERELI. 

 (Plate XL) 



Has the face naked and black, but the centre of the nose white, 

 the ears showing as black points amid the white hair ; head and 

 back of neck white, slightly washed with yellow ; outer side of 

 arm and fore-arm dark maroon-red, the lower border fringed 

 with long white hair ; a maroon patch on the upper and outer 

 surface of the thighs, lighter on the chest and central part of 

 the belly. Loins dark rusty-grey; hands white; tail rusty -grey. 



Distribution. Verreaux's Sifaka, with its two varieties, is con- 

 fined to the small thin woods on the sandy and almost rain-less 

 plains along the western and southern coasts of Madagascar. 

 The type-form is found, alone, and unassociated, in the exten- 

 sive plains of Mesozoic geological formation between the 

 southern base of the eastern range of mountains and the River 

 Tsidsubon, which flows into the sea on the west coast. Von 

 der Decken's Sifaka inhabits the middle of the west coast, while 

 Coquerel's Sifaka has its home further to the north. It occupies 

 the area between the south side of Narendry Bay and the north 

 side of Bernbatoka Bay, the Betsiboka River being its extreme 

 southern limit. 



Though first observed by Flacourt, and described by him in 

 1 66 1, Verreaux's Sifaka remained practically unknown from 

 that time till re-discovered by M. Grandidier in 1867. 



III. THE CROWNED SIFAKA. PROPITHECUS CORONATUS. 



Propithecus coronatus, Milne-Edwards, Rev. Scient, 1871, p. 

 224; id. et Grandid., Hist. Nat. Madag., Mamm., i., p. 

 316 (with full synonymy), Atlas, pi. 7. 



