194 ON THE NEW-GUINEA MAMMALS. 



88. Pseudochirus avarus Thomas. 



Very like Ps. canescens, but without the dark |ear-patch ; 

 skull apparently as in that species; molars slightly smaller 

 than in the type of gyrator. This Phalanger, says Thomas, 

 may be readily distinguished from all forms of Ps. canescens 

 by its tawny-backed ears, without darkening either on or 

 round them. In most other respects it is very like that 

 species or at least like gyratoi\ with which alone he has been 

 able directly to compare it (Ann. Mag. N. ÏÏ. 1906, p. 

 329). Head and body 250 mm., tail 210 mm.; skull; 

 basal length 49 mm., greatest breadth 29.5 mm. This species 

 is based upon a single adult male from Port-Moresby, 

 British New-Guinea. 



89. Dactylopsila irivirgata Gray. 



Described by Gray after a specimen from the Arou- 

 islands. In the Paris-Museum there are specimens from 

 Mounts Arfak, Jobi-island and Waaigeou (dde A. Milne 

 Edwards), collected by Rafifray and Laglaize. In the Genoa- 

 Museum are specimens from Mounts Arfak by Beccari, 

 from Katau by d'Albertis (fide Peters and Dor'ia), and 

 from Loria's collections made at Haveri, near Mount Wori- 

 Wori, at Bara Bara, opposite Killeston-island in Milne- 

 Bay, at the extreme S. E. corner of New-Guinea, and 

 from the upper Vanapa-river. In the Leyden-Museum 

 are specimens from the Arou-islands, Wouoembai and 

 Wokam, collected by von Rosenberg, besides others from 

 New-Guinea. 



90. Dactylopsila Albertisii Peters et Doiia. 



Described after an adult female-specimen, collected in 

 N. W. New-Guinea near Sorong, by d'Albertis. It differs 

 from D. trivirgata Gray from Arou, by a much longer 

 tail, somewhat shorter ears, smaller size of carpal pad and 

 less broad white back-stripes. Head and body 260 mm., 

 tail 350 mm. (Ann. Mus. Geuova, 1875, p. 542). The 



IS'otes from the Leyden Museum, Vol. XXVUI. 



