Mr, 0. Thomas on a neio Echimys. 243 



XXXVI. — Description of a neio Bat from North Borneo, 

 By Oldfield Thomas. 



Hipposiderus sahanus, sp. n. 



Size small. Head short and blunt. Nose-leaf exceedingly 

 reduced, smaller than in any described species, the horseshoe 

 covering scarcely a third of the top of the muzzle. E'ront 

 surface of posterior transverse leaf not divided by vertical 

 bands ; horseshoe narrowing forwards, the middle of its ante- 

 rior edge sharply notched ; no secondary leaflets present. A 

 small transverse frontal gland (in female). Ears rather small, 

 their tips evenly rounded, the anterior margin straight or 

 faintly concave above, the posterior convex throughout. 

 Wings from the metatarsus ; tip of tail projecting about 

 3 millim. Colour (in spirit) uniform dull brownish above 

 and below. 



No minute upper premolar present; the large premolar 

 pressed close against the back of the canine ; the tips of these 

 two teeth only 0'8 millim. distant from each other. 



Dimensions of the type (an adult female in spirit) : — 



Forearm 38 millim. 



Head and body 43 ; tail 26 ; head 16*6 ; nose-leaf ox 3*7 ; 

 ear 15 ; lower leg 17 ; calcar 7. 



Bab. Lawas, N. Borneo. Coll. A. H. Everett. 



This peculiar little species differs strikingly from every 

 known Hijjposiderus by the extreme reduction of its nose- 

 leaf, while in the absence of its anterior upper premolar it is 

 alone resembled by the African H. megalotis. 



XXX VII. — Description of a neio Echimys /y-o?u the 

 Neighbourhood of Bogota. By Oldfield Thomas. 



In two previous communications to the ' Annals ' ^ I have, in 

 default of really typical specimens, accepted an Echimys from 

 the neighbourhood of Bogota as representing Tomes's E. semi- 

 spinosuSj described from Ecuador f. Now, however, among 

 some specimens recently presented to the Museum by the 

 Zoological Society, at whose rooms they had been lying over- 



* Aun. & Mag-. Nat. Hist. (6) xviii. p. 312 (1890), x.\. p. 551 (1897). 

 t P. Z. y. 1860, p. 265. 



