434 



SCIENTIFIC RESULTS EROM THE MAMMAL SURVEY. 



By Kathleen Y. Ryley. 



V. 



In worJcmg o%d these results, Mr. 0. Thomas, F.R.S., has very 

 Mildly given me the advantage of his /leZp and advice. 



A. — Two New Species of Spiny-Mice of the Genus Leggada 



FROM COORG. 



The Leggads collected in Coorg must be divided into two species ; 

 those taken in Wotekolli, at an elevation of 2,000 feet, differing from 

 those obtained at Makut, at an altitude of only 250 feet. If the large 

 series from Dharwar described as L. lolatythrix by Mr. Wroughton, 

 is true platythrix (and if not absolutely the true flatythrix, they are 

 at least nearer to it than anything else we have), then neither of the 

 series from Coorg can be classified as L. lolatythrix, but must be 

 described as new species. 



Leggada grahami, sp. n. 

 The Coorg hill Spiny-Mouse. 



A Leggada resembling L. platythrix in size, but differing from 

 that species in having a greyer undersurface and slightly different 

 skull characters and coarser spines. General colour dark -brown, 

 decidedly darker than jplatythrix (the Dharwar specimens are taken 

 for comparison, as the tj^pe is in spirit and the locality, being simply 

 " Dekhan," is vague) which has a more hnffj appearance ; the 

 spines, which are coarser and more numerous, are grey with brown 

 tips, intermixed with grey hairs tipped with light-brown. The 

 belly is white in the centre, but there is no distinct line of demar- 

 cation, the grey of the flanks gradually shading into white, the 

 spines being white and the underhair grey, the underside of the 

 legs is greyish also, and the feet are grey. The tail, which is 

 thinly covered with short hair, is very dark above and slightlj'- 

 lighter below. 



Mammary formula 3 — 2 = 10. 



Skull like that oi platythrix, according to measurements, but the 

 mesopterygoid fossa opens squarely just behind the third molars, 

 whereas in platythrix it commences further back and then is veiy 

 much narrower. The palatal foramina are considerably shorter, 

 only extending as far back as the first root of m\ in platythrix they 

 reach the second root of m'; m^ is also slightly smaller. 



Dimensions of t'yioe (measured in the flesh). — Head and bod}' 

 109mm; tail 72 ; hindfoot 18-5; ear 15. 



8Jiull. — Oondylo-incisive length 26mm. ; basilar length 22*3 ; 

 zygomatic breadth 13*5; nasals 10; diastema 8; upper molar 

 series 5. 



