94 CUSCUS ORTENTALIS. 



1846. Phalangista (Cuscus) orientalis Waterhouse. Marsu- 



piata. Vol. I. p. 279. 

 1858. Cuscus celebensis Gray. P. Z. S. L. p. 105. PI. LXII 



(partim); Cuscus orientalis Gray. 1. c. p. 104. PI. LXI. 



1860. Cuscus ornatus Gray. P. Z. S. L. p. 1. PI. LXXIV. 



1861. Cuscus (Strigocuscus) celebensis Gray. P. Z. S. L. p. 319 

 (with two woodcuts of the skull of a not fullgrown 

 Cuscus orientalis) ; Cuscus ornatus Gray. 1. c. p. 320 

 (with two woodcuts of the skull of an adult Cuscus 

 orientalis); Cuscus orientalis Gray. 1. c. p. 320. 



1875. Phalangista [Cuscus) gymnotis Peters et Doria. Ann. 



Mus. civ. Genova. Vol. VII. p. 513. 

 1877. Cuscus vestitus A. Milne Edwards. Compt. rend. 



p. 1080. 

 1881. Phalangista (Cuscus) gymnotis Peters et Doria. Ann. 



Mus. civ. Genova. Vol. XVI. p. 19. Tav. VIII— 



IX, fig. 3; Tav. XIV. 



Sexes not differently colored; a dark band on the middle 

 of head and back '). Ears large, produced beyond the fur, 

 externally clothed with hairs, internally naked; a tuft of 

 white hairs near the base of the posterior margin of the 

 earconch. Dental formula : I. f , C. ^ , P. | , M. |. 



It is a very singular phenomenon that the males of this 

 species have a certain tendency to albinisme. I nowhere 

 found a description or notice as to a white female-speci- 

 men. In our large collection embracing a number of ni- 

 nety individuals there are but ten white specimens and 

 these ten are males. The other males are exactly colored 

 like the females ; the dark band on head and back is com- 

 mon to both sexes and to all ages ~) , even it is to see 



1) Alston (P. Z. S. L. 1878. p. 275) observes: /.the dorsal stripe is some- 

 times absent". I believe it to be a very constant character and never saw a 

 Cuscus orientalis without this stripe (some iilbinos excluded). 



2) Temminck says in his Mammalogie I. p. 18: «Les embryons sont deja 

 reconnaissables aux indices que fournit la raie unique". 



Notes from tlie Leyden Museum, "Vol. VII. 



