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A NEW MURINE GENUS AND SPECIES FROM SIND, 



WITH DIAGNOSES OP THREE OTHER NEW 



GENERA BASED ON PREVIOUSLY KNOWN 



SPECIES OF "MUS." 



BY 



Oldfield Thomas, f. r. s., British Museum. 



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



I owe to the kindness of Mr. R. C. Wroughton the opportunity 

 of examining and describing a highly interesting mouse obtained 

 in Sind by Mr. E. Priestley for the Natural History Society of 

 Bombay, and now presented by the Society to the British 

 Museum. 



Mr. Wroughton has himself given a note on the other species 

 obtained by Mr. Priestley, among which is a Leggada so like the 

 new species as to be readily mistaken for it. 



PYROMYS, g.n. 



External proportions about as in Leggada platythrix. Fur pro- 

 fusely mixed with spines, but not, as in Acomys, wholly spinous. 

 Ears rather small. Thumb with a small triangular nail, other 

 digits with normal sized claws ; soles naked, smooth ; pads six in 

 number, large, rounded, the last one not elongated. Fifth hind 

 toe long, reaching nearly to end of the first phalanx of the fourth. 

 Mammae 4 — 2= 12. 



Skull strongly bowed, its profile convex above. Supra-orbital 

 ridges broad and strongly developed, but disappearing posteriorly 

 half way across the parietals, the interorbital space narrow anter- 

 iorly, rapidly broadened posteriorly. Anterior palatine foramina 

 very long, extending to level of the anterior internal root of m l ; 

 posterior palatine foramina also long, extending from the level of 

 the hinder cusp of m 1 to the front, cusp of m 6 . Posterior palate 

 continued backward some way behind m :J , the narial opening 

 narrowed, and the middle part of the palatal edge thickened into a 

 median palatal spine. Bullae unusually large. 



Incisors normal, their edge not notched. Molars of the same 





