CUSCUS MACULATUS. Ill 



white, bright brown or bright red. Clothed part of tail 

 whitish, brownish or reddish, darker towards the rump. 

 Lowei-parts and innerside of legs white; brownish or red- 

 dish towards the base of the tail and in the region of the 

 pouch. Generally a distinct black band separates the white 

 abdomen from the darker sides of the body. 



It must be observed that always the females are larger 

 in size and bigger than the males and that the young 

 males are colored like the adult ones and the young fema- 

 les like the adult females. 



A highly interesting and very difficultly explicable fact 

 is, that, meanwhile constantly the males are spotted and 

 the females not, the females living in Waigeou seem to 

 have constantly the coloring of the males specimens. Les- 

 son and Garnot's discus macrourus (femelle) from Wai- 

 geou is the first exemplar of this kind; Gray enumerated 

 a spotted female from Waygeroo (Waigeou) , from Wal- 

 lace's voyages; Peters cited a spotted female collected by 

 Bruyn in Waigeou ; finally in our collection there are two 

 spotted females from Waigeou , collected by Bernstein. It 

 seems that up to this time nobody has been struck by this 

 very surprising phenomenon. A description of the Waigeou- 

 specimens will be found hereafter. A careful compara- 

 tive study of the skulls of the named specimens from 

 Waigeou in our collection led me into the following ob- 

 servations : the size and shape of the four (2 (ƒ and 2 Q) 

 skulls before me correspond exactly with the size and shape 

 of other skulls of perfectly adult specimens from other lo- 

 calities and in our collection, but the dentition is very 

 peculiar. Irst male, upper jaw : the second left molar wants , 

 no trace of follicle , a small interval between first and 

 third molar; lower jaiv: three small premolars in each jaw. 

 2nd male , upper jaio : between canine and large premolar 

 a very small and acutely pointed premolar ^) ; lower jaw : 



1) VA. the figure of the skull of Cuscus maculatus (pi. 4) in „le Voyage de 

 la Coquille." 



.Notes from the Leyden IMuse-mcxi, Vol. "VII, 



