542 MR. OLD FIELD THOMAS ON [May 15, 



of the front of the canines. Posterior palate practically without 

 vacuities. Anterior portion of bullae considerably larger than 

 posterior. 



Teeth with the same relative proportions to each other as in 

 Fh. minutissi7)ia^ but conspicuously smaller throughout, both abso- 

 lutely and in proportion to the size of the skull. Upper secator 

 (last premolar, the " p'* " of the Catalogue of Marsupials) about 

 twice the size of the subequal anterior and median premolars. 

 Lower secator about half the size of the anterior premolar, 

 which is in turn about half the size of the median one. 



Dimensions of the type, measured in the flesh : — 



Head and body 80 mm. ; tail 60 ; hind foot 10 ; ear 9. 



Skull — greatest median length 1 8 ; basal length 1 7 ; zygomatic 

 breadth 9'7 ; nasals 6"6 X 3 ; inter orbital breadth 3"8 ; breadth of 

 brain-case 8"5 ; palate length 8'7 ; length of upper tooth-row 8 ; 

 combined length of three anterior molariform teeth o'l ; length 

 of lower tooth -row 7'2. 



A female skull is smaller, 16 mm. in greatest length. 



Hah. Alexandria, central part of Northern South Australia. 

 Alt. 600'. 



Type. M.&\e. B.M. No. 6.3.9.77. Original number 1 1 1 . Col- 

 lected 30 April, 1905. Three specimens. 



This remarkable little species looks externally like a more pallid 

 representative of Ph. minibtissima, but the peculiar characters of 

 its skull and teeth show that it is really a quite distinct animal. 

 I have miich pleasure in naming it after Su" William Ingram, 

 to whose initiative and generosity the Museum is indebted for the 

 sending of a collector to this most interesting locality. 



15. Smtnthopsis larapijSTTA Spencer. 



c?. 101, 102, 112, 116. ?. 93, 100, 119, 144. Alexandria, 

 600'. 



S . 146. S.W. of Alroy, Alexandria. 



" Native name ' Baraga.' Caught among dead timber on 

 plain."— IF. ^. 



This is a very beautiful drab-grey species, with a contrasted 

 dark line running down the muzzle, and with the centre of the 

 sole naked as far back as a point equidistant between the heel 

 and the tip of the hallux. It was first obtained at Charlotte 

 Waters, Central Australia, dui'ing the Horn Expedition, and was 

 described by Prof. Spencer, who unfortunately, working only 

 from spirit-specimens, did not mention the dark facial line, 

 which is, however, clearly marked in a metatype in the Museum 

 collection. 



S. nitela CoUett *, of which we have a co-type, would appear 

 to be the same animal, Dr. Collett having been misled by the 

 absence of all reference to the facial line in the original descrip- 

 tion, and the metatype in the Museum having only been received 



* P. Z. S. 1897, p. 334. 



