Jt^Hi/fs Archipcliiijo and of Cape York. 079 



III woikiiiii; out this animal, I have af^aiii exariiiiUMl a liiu; 

 series of Bandicoot skina and skulls obtained by ^Ir. iiftbin 

 Keinp at the cxtrome north end of the Cape York Peninsula 

 in 1912-13. Some of them are the large animal with an extra 

 crook on its m\ which represents U misay's torosnft, whether 

 liiat is or is not se|)arable from G<)uld's jnacrouras. 



But the series of a small sj)ecies relatetl to aitratus seems 

 certainly to be distinguishable, and may be called 



Isoodon peninsulie, sp. n. 



Size and general characters as in I. auratus of the Northern 

 Territory of S. Australia. Colour, on the whole, similar, 

 but the light bands on the hairs are paler, more buffy, less 

 ochraceous, and, especially, the sides have not the ochraceous 

 wash generally found in auratics, and no doubt the basis of its 

 name. Under surface white. 



Skull, as in auratus, distinguished from that of ohesulas by 

 the almost complete absence of any sexual dilTeronce in size, 

 the males not or but little longer than the females. General 

 size about as in auratus, but the muzzle decidedly longer and 

 not so conical. A skull of auratus with a zygomatic breadth 

 of 29 mm. has a muzzle length (orbit to gnathion) of 29'6 mm., 

 while one oi peninsnlce, with the same breadth, has its muzzle 

 33 mm. ; and this difference runs throughout the good series 

 available. Nasals in consequence markedly longer. Palatal 

 vacuities and bullae slightly smallerj but both as usual very 

 variable. 



Teeth, on tlie whole, rather smaller than in auratus, but the 

 difference veiy slight. 



Dimensions of the type (measured in the flesh) : — 



Head atid body 308 mm. ; tail 116 ; hind foot 5G ; ear 31. 



Skull : greatest length 62*5 ; condylo-basal length 62 ; 

 zygomatic breadth 29 ; nasals 25 X 5 ; orbit to gnathion 33 ; 

 intertemporal breadth 12; palatal length 37; anterior |)alatal 

 foramina 4"6 ; palatal vacuities 5*6 ; oblique length of bulla 

 13*3. Dental length 33'5, front of canines to back of m^ 

 24-5 ; ms^--^ 10. 



Ilab. Northern Cape York. Type from Utingu, others 

 from Cable Station. 



Type. Adult male. B.M. no. 15. 3. 5. 71. Original number 

 2415. (Collected 20th September, 1912, by Itubin Kemp, 

 fifteen specimens examined. 



Distinguishable from auratus by its comparatively long 

 niuzzle. 



