62 JOURNAL, BOMBAY NATURAL HIST. SOCIETY, Vol. XXIV. 



Tapliozous australis georgiamts, snb-sp. n. 



Like typical T. australis in size, rudimentary condition of gular 

 sac in female, and colour (so far as can be made out on spirit 

 specimens) but distinguished by the fact that the intertemporal 

 constriction of the skull is markedly narrower, and the basial pits 

 are longer. In six specimens of T. australis, from the Cape York 

 region, including the two co-types, the intertemporal constriction 

 is uniformly just 5 mm. across, while in two specimens of georgianus 

 it is 4-1 mm. which makes a material difference in the general* 

 aspect of the skull. Basial pits in T. australis 3-5 mm. in length, 

 and ending about a millimeter from the large vacuities outside the 

 nasal cavities, in T. a. georgianus 4*1 mm. in length, and ending 

 quite close to the vacuities. 



Other characters apparently as in T. australis, except that the 

 rudimentary indication of a gular sac is less perceptible than in that 

 form. 



Dimensions of the type : — Forearm, 65 mm. Head and body, 

 78 ; tail, 25 ; ear, 21 ; third finger, metacarpal, 60, first phalanx, 

 21-5 ; lower leg and hind foot (c. u.), 36-5. 



Skull: — Greatest length, 22-2; condyle to front of canine, 

 21; zygomatic breadth, 13*7; interorbital breadth, 6-2; inter- 

 temporal breadth, 4*1 ; mastoid breadth, 11 j maxillary tooth- 

 row, 9-6. 



Habitat. — Western and North-Western Australia. Type from 

 King George's Soimd; a second specimen (imperfect) from the 

 Mary River, Northern Territory. 



Type.— Adult female in spirit. B. M. No. 44. 2. 27. 59. Pre- 

 sented by Sir John Richardson. 



This sub-species is founded primarily on specimen d of Dobson's 

 Catalogue, a female, which, when it first came, was accompanied by 

 a male, but the latter has now unfortunately disappeared. This 

 specimen d was said by Dobson to be the type of Gould's species 

 australis, but a reference to the original description, in the " Mam- 

 mals of Australia*, shows that australis was founded on two speci- 

 mens from Albany Id., Cape York, which are Dobson's h and c, 

 these therefore being the co-t}"pes of the species. Four other 

 specimens from the Cape York region all quite agree with the co- 

 types of the species in the characters now used to separate the 

 Western form. 



Tajjhozous perforatus hcedinus, su-bsp. n. 



Essential characters as in true perforatus, but colour much darker 

 throughout. Upper surface sepia brown, the basal half of the hairs 

 white. Throat sepia, the interramial region suffused with wood- 



*Vol. Ill, pi. 32, 1854. 



