ON THE NEW-GUINEA. MAMMALS. 193 



Museum possesses a specimen of the typical Albertisii 

 from Moeri, also iu the Arfak Mountains, at about 1000 

 m. altitude. At these two altitudes Mr. Burke also collect- 

 ed specimeus respectively referable to PJtalanger orientalis 

 typicus (1000 m.) and PA. o. vestitus (2000 m.), whose 

 differences in pelage are very similar to those found in 

 the two Fseudochiri (Thomas, Ann. Mus. Genova, 1897, 

 p. 144). 



86. Pseudochirus cupreus Thomas. 



Based upon two specimens from Mount Owen Stanley, 

 British New-Guinea, purchased of Messrs. Mc. II wraith and 

 Co. This species may be readily distinguished from its 

 allies by its large size, dark colour, naked tail-tip, different 

 supraorbital ridges and heavy teeth. General colour, uniform 

 dark coppery, very similar to that of Ps. A. coronatus. 

 Head and body of an adult male 425 mm., tail 330 mm.; 

 skull: basal length 70 mm., greatest breadth 47 mm. 

 (Thomas, Ann. Mus. Genova, 1897, p. 145). 



87. Pseudochirus canescens gyrator Thomas. 



The origin of the typical cajiescens is unknown. Thomas 

 (Ann. Mag. N. H. 1904, p. 401) distinguished from this 

 species, a young adult male, killed by Stalker at Liudum 

 Creek, Gira-river district, British New-Guinea, under the 

 name gyrator ; he said it to be surprisingly similar to 

 that species (canescens), considering the difference in loca- 

 lity, but that it is decidedly smaller (skull 43 mm. as against 

 50 mm., in basal length) and that the naked portion of the 

 tail is shorter. Colour very much as in the figure oi Ps. Bern~ 

 steinii ') given by Peters and Doria. Head and body 240 mm., 

 tail 175 mm.; skull: basal length 43.3, greatest breadth 28 mm. 



1) It should be noticed that the typical Bernsteinii Schlegel, preserved in 

 the Leyden-Museum, is from Salawattie, 7wt from New-Guinea. 



]Xotes from tlxe Leyden ÜMuseuiu, Vol. XJXIVIII. 



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