( (i-2-! ) 



SkidL CJi-eatest length. 14 iiuu. ; jjalutiil leiigtli. 5-7; zygomatic lireadtli, 8; 

 greatest length fi-om auilital bullae to highest part of frontalis, 8 ; greatest length 

 from highest part of frontals to tip of nasals, 6'7. 



Hah. Okinawa, Liu-Kin Islands. 



Tyjje. Adult nude, coll. X. C. K. No. 125, obtained on March 18, 1902. 



The colour of this bat is alone sufficient, to distinguish it from the other 

 forms, being \erv much duller and darker than any other specimens I ha\e examined. 

 The Japanese and Chinese individuals are of a light rufous-brown and quite distinct. 

 Its colour is, however, most nearly approached by specimens from Sikkim and the 

 jNIalfiy Peninsula, but even these dark forms retain a tinge of the rufous which, 

 although the prevailing tint among the other eastern forms, is entirely absent in 

 the present examples. 



Three specimens were brought back, one mali- and two femrdes, the latter 

 differing in no way from the type. 



I append, for sake of comparison, the measurements of the skull of a specimen 

 from J''okien. Greatest length, IG mm.; palatal length, 7; zygomatic breadth, 9; 

 audital bullae to frontals, 9 ; frontals to ti|i of nasals. 7"2. 



3. Crocidura caerulea i^Kerr;. 

 Fourteen examples, 5 <J cj and 9 ? Y . 



'4. Mus rufescens Gray. 



Five specimens, 1 c?, 2 ? ?, and 2 immature. 



These examples vary slightly among themselves, some of them being distinctlv 

 darker, especially on the underparts, than others. 



^5. Mus caroli sp. nov. 



Seven examples, 5 cJ J and 2 ? ¥ . 



Belonging to the Mus muacidus group but slightly smaller, the tail being 

 rather longer than the head and body, (ieneral colour above light fulvous-brown, 

 the underparts and feet being }mre white, the line of division between the two 

 colours being well marked. Fur soft and moderately long, entirelv free from spines, 

 each hair being dark at its base and having a light fulvous tip. Ears nakeil, 

 rounded, and of moderate size. Tail very distinctly bicolor. 



Tlie skull does not appreciably (litter from that of a tvpical Mas rnuscuhis 

 except for its smaller general size. The auditory bullae, moreover, are smaller and 

 more elongated. The pattern of the teeth, which are unfortunately much worn, 

 ajipears to be identical with that of the true ,)/. tiiusculns. 



Dimensions of type (in flesh >. Mead and body 7.) mm.: tail 8(i, hindfeet 18, 

 ear 13. 



Skull. Greatest length, 22 mm.; basilar length, l.S; Imglh of palate tn 

 henselion, lO'o; length of nasals, 8; greatest length of bullae, 4; breadth of 

 basioccii)ital at end of bullae, ?>. 



Hab. Okinawa, Liu-Kiu Islands. 



Type, d adult, coll. N. ('. K.. No. 80, obtained on 3Iarch 1,3, 1902. 



This small mouse is merely a well marked race of the .l/y.y riiiisc'dus group. 



