404 Mr. O. Thomas on 



2C). Rattus con/ucianus, M.-Edw. 



<?. 7t), 81, 82; $. 75, 87. Mekong Valley, 28° N. 

 7000'. 



(?. 35, 113 ; ? . 116. Mekong-Yangtze divide, 27° 30' N. 

 8000-9000'. 



S . 405, 1237. Li-kiang Range, 27° 30' N. 11,000- 

 12.000'. 



27. Rutfus eha ninus^ subsp. n. 



? . 05, 163. MekoncT Valley, 28° N. 8000-9000'. 



(J. 315,317; $.309,311. Kin-kiang-Salween divid-, 

 28° N. 11,000'. 



Duller Coloured than true eha o£ Sikkini, the general tone 

 less rufous and the face-niarkinga almost obsolete; the black 

 eye-rings and greyish-white whisker-pRfches, so "well-defitied 

 in eha^ scarcely perceptible. Siiies less vivid ochraceous. 

 Ears brown. Feet brown proximally, white distal ly. Tail 

 long, thinly haired, faintly pencilled distally, brown above, 

 whitish below, the contrast less m ;rked than in elia. 



Skull rather variable, but on the average like that of e/ia, 

 with the exception that the interorbital space is narrower and 

 more sharply ridged. 



Dimensions of the type (measured in flesh) : — 



Head and body 127 mm.; tail 144 (imperfect, other speci- 

 mens np to 180); hind foot 27 ; ear 20. 



Skull : greatest length 32 ; condylo-incisive length 28*3 ; 

 nasals 11*3 ; interorbital breadth 3*7 ; breadth of brain-case 

 13*5; zygomatic plate 2*5; palatilar length 13'2 ; palatal 

 toramina 6'7 ; upper molar series (worn) 4"6. 



Ilab. as above. Type from the Kiu-kiang-Salween divide. 



Tyjn. Adult female. B.M. no. 22. 9. 1. 107. Original 

 number 311. Collected 19th August, 1921. 



The rat obtained by Mr. Kingdon Ward on Mount Imaw 

 lUim, and referred to R. eha in my list of his collection, is 

 also a good representative example of R. e. ninus, which 

 ditlers from true eha by its duller and less contrasted colora- 

 tion and narrower interorbital region. 



28. Apodemus ilex, sp. n. 



J . 176, 177, 314; ? . 169. Kiu-kiang-Salween divide, 

 28" N. 8000-12,000'. 



cJ . 109 ; ? . 39, 137. Mekong-Yangtze divide, 27° 30' N. 

 7000-9000'. 



J 



