SCIENTIFIC liESULTS FROM THE MAMMAL SURVEY. iM)", 



detailed structiire ot" its molars, now only known from a single well 

 worn specimen. 



Postscript: — Since llie above was written Mr. Crump has seen ilir 

 specimens and had tlie difficulty about their origin explained to him. 

 He remembei's obtaining a single rat among the rocks at the top of 

 Mt. Pareshnath, and while not venturing to express absolute 

 certainty, he is still inclined to believe that the skin 15.4.3.35., like 

 as it is to that of a Mettad, reallj' belongs to the skull, so obvioTisly 

 that of a very different animal. Further material can alone solve 

 the problem, biit a rocky mountain top does not sound the natural 

 place for an animal with its posterior foot-pads aborted, as in the 

 plain-loving MiUardia, and so many other plain and desert 

 mammals. 



(D) — The Spiny-mouse of Sind. 



BY OlDFIELD ThOiMAS, 



(Published by permission of the Trustees of the British Museum.) 



In his Mammals of India Mv. Blanford records a Spiny-mouse 

 from Sind as Acomys dimidiatus, and the specimen he refers to 

 still remaining unique so far as India is concerned, that determin- 

 ation has not hitherto been re-investigated, in spite of the great 

 distance between Sind and the Sinaitic Peninsula, the type locality 

 of A . dimidiatus. 



Now however, at Mr. Wroughton's request, I have carefulh" 

 examined this specimen, and find, as is not surprising, that it can- 

 not be referred to A. dArnidiatus and apparently needs description 

 as new. 



Acomys ftavidus, sp. n. 



Allied to A. dAmidiatus, but colour paler, and no line of demar- 

 cation present on sides. 



Relative development of fur and spines about as in dimidiatus, 

 the spines not extending forward to the head, as is the case in 

 russatus. General colour above very pale yellowish sandy, about as 

 in A. rnssat'iis cegyptiaciis, decidedly paler than in dAmidiatus. This 

 colour graduall}^ lightens on the sides, without sharp line of demar- 

 cation, to 5'ellowish white, the whole of the undersurface and the 

 leet being of the latter colour. Tail longer than head and body, 

 wholly white above and below. 



Skull like that of dimidAatus in its general proportions, and the 

 development of the cranial ridges. 



Dimensions of the type, measured on the spirit specimen : — 



Head and body 90 mm.; tail 101 ; hind foot l'J-5. 



Skull, greatest length 30-6 ; condylo-incisive length, 27*5 ; 

 zygomatic breadth 14-7; nasals 11-4; interorbital breadth 4"8 ; 



