330 ^Ir. O. Thomas on neio 



palatal length 2')'5 ; palatal foramen 5 ; length of tliree 

 anterior inolaiiform teeth 7'6 ; length of lower tooth-row 13*5. 



I/ab. Port ^loresbv, British New Guinea. 



Type. Adult male.' B.M. no. 6. 1. 2G. 2. 



This Phalanger may be readily di.stinguished 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 Ps. canescens 

 gyrntor *, with which alone I have been able directly to 

 compare it. 



Dasyuroides Dyrnei pallidioVj subsp. n. 



Simibir in essential characters to true Byrnei, but slightly 

 smaller, paler, and with smaller bullae. 



Hair of back about 12 mm. in length. General colour 

 above near "drab-grey" of Ridgway, or very slightly 

 yellower, the brown of D. Byrnei being near " isabella." 

 Basal portion of tail pale yellowish white, as compared with 

 the orange of D. Byrnei. Colour otherwise as in that 

 animal. 



Skull rather shorter than in Byrnei, and the teeth slightly 

 smaller. Bullae markedly smaller than those in the corre- 

 sponding sex of D. Byrnei, their greatest length in the male 

 type of pallidior li mm., as compared with 15*5 in the male 

 Byrnei, and the vertical height of the brain-case and bullae 

 combined only 16 mm. as compared with 17'5. The mastoid 

 portion of the bullae also obviously smaller, its diameter at 

 right angles to its longer axis about 5 mm. in pallidior, 6 mm. 

 in Byrnei ; the part behind and above the meatus is also ob- 

 viously more inflated in Byrnei than in j^f^^Hdior. The female 

 even of I). Byrnei has slightly larger bullae than the male 

 2Hd/idior. 



Dimensions of the type (measured on the spirit-specimen): — 



Head and body 146 mm. ; tail 132 ; hind foot 40; ear 26. 



vSkull : greatest length 42 ; basal length 39 ; greatest 

 breadth 24"5; constriction 7*2 ; palate length 21*8; combined 

 length of three anterior molariform teeth 8'7. 



Bab. Kiilalpanima, E. of Lake Eyre North, South 

 Australia. 



Type. Adult male. B.M. no. 5. 8. 9. 7. Collected and 

 presented by H. J. Hillier, Esq. 



Both the type of IJ. B. pallidior and the topotypical 

 examples of L). Byrnei with which I have compared it liave 

 been skinned out of spirit, so that their coloration may have 

 been more or less affected. 



* Ann. & Mag. Nat. Hist. (7; xiv. p. 401 (1904). 



