152 On fome Mammals from KunhtrUij^ Australia. 



4. Petrogah I'nornata, Goul<]. 



^^. 5. Pairj's Creek. 



This rare species has not hitlierto been represented in the 

 Museum Collection, as the t3'pe, descrihcl by Goiil'l in 1842, 

 was reclaimed by the collector, Mr. Bynoe, and has now- 

 disappeared. 



.5. Isoodon macrurus, Gould. 

 ^ . 7. Parry's Creek. 



6. Dasyurus Jiallucatus exilis, subsp. n. 



r?. 10, 11. Parry's Creek. 



A t-maller paler form of D. hallncatus. 



Size decidedly less than in true Jiallucatus. General 

 colour above pahr, owing to the ground-colour itself being 

 paler (approaching "drab-grey"), while the white spots are 

 not only very numerous, but are not so sharply defined, 

 white hairs straggling over from them to the darker ground- 

 colour. Ears, sides of neck, under surface, and upper sides 

 of hands and feet wliite or whitish, instead of pale drabby. 

 1'iiil thinner and less heavily |<encilled than in h'dlucatus, its 

 upper side lightly grizzled drabby for three-fourths its length, 

 the underside and tip dark brown *. 



Skull as in true hallucatus, but rather smaller throughout. 

 Teeth distinctly smaller. 



Dimensions of the type (measured in flesh) : — 



Head and body 266 mm. ; tail 219 ; hind foot 43 ; ear 35. 



Skull: basal length 58; greatest breadth 39; interorbital 

 breadth 14 ; palatal length 32 5 ; combined length of three 

 anterior molariform teeth 11*6. 



Type. Old male. Original number 10. Collected 8th Sep- 

 tember, 1908. 



A very well-marked form which many naturalists would 

 consider deserved specitic rather than subspecific distinction. 

 '1 he balance of convenience, however, appears to me to be on 

 the side of recognizing in its name that it is related to and 

 locally representative of the species of which I call it a 

 subspecies. A simple binomial gives no clue to its relationship. 



* In halhicatus the tail is grizzled drabby or grizzled buffy above and 

 laterally for about half its length, the under surface (except the extreme 

 base) and end being black or blackish. The desciiption given in the 

 Catalogue of Marsupials was based on imperfect specimens. 



