On new Asi'ati'r Mammals. 423 



sides, not on the upper .surface. Palatal fi^ramiua about the 

 len^'th of the niohir series, not extending back to the level of 

 the front of m\ Front of upper incisors pale whitish yellow, 

 of lower ones white. 



Dimensions of the type (measured in the flesh) : — 



Head and body 130 mm. ; tail 150; hind foot 35 ; ear 5, 

 length of conch 2. 



fcjkull : greatest length 30'5 ; basilar length 24; zygomatic 

 breadth 15 5; length of nasals 10"8 ; interorbital breadth 5"6; 

 breadth of brain-case 14*4 ; palatilar length 13'5 ; diastema 

 7"8; palatal foramina 5x2'2; length of upper molar 

 series 4'6. 



Ilab. Tres Rios, Costa Rica. 



T>ipe. Male. Collected 5 May, 1905, by Mr. C. F. 

 Underwood. 



Tiiis beautiful animal forms a striking addition to the fauna 

 of Central America, and it is with much pleasure that I name 

 it in honour of Mr. Underwood, who had known of its 

 occurrence for some time, but had hitherto been unable to 

 obtain a specimen. 



This makes the third mammalian genus discovered by 

 Mr. Underwood, the other two being Glij phony cleris and 

 iJylontjcteris. 



LVIIL — Ntw Asiatic Mammals of the Genera Kerivoula, 

 Eliomys, and Lepus. By Oldfield Thomas. 



Kertvoula picta hellissima^ subsp. n. 



Essential characters as in picta, but size larger and fur 

 longer. 



{Size decidedly larger than in picta, the forearm about 3 mm. 

 longer. Fur long, thick and woolly ; hairs of back about 

 9 mm. in length. Interfemoral membrane and hind limbs 

 more thickly and extensively covered above than in picta. 

 Colour practically as in picta, except that the fur of the back 

 is more strongly contrasted blackish slaty for about 2 mm. 

 at its base, only a faint indication of a darker basal shade 

 apjjearing in picta. Face more white than rest of body. 

 Tail-vertebraj apparently only six in uumber instead of seven, 

 the individual joints longer, especially the proximal ones. 



tSkuU as in picta, except for its larger size. 



Dimensions of the type (a skin) : — 



Forearm 39 mm. 



SSkull : greatest length 15 ; palate length in middle line 7; 

 front of i' to back of //*' 7"5. 



