new Mammals from Northern Rhodesia. 241 



This species closely resembles A', lanoaa in general appear- 

 ance, but it is distinguished by its rather smaller size, smaller 

 and less hairy ears, greyer coloui-, and by some characters of 

 the skull. 



Size small, forearm 30'5 mm. Fur on body and top of 

 head very long, dense, and woolly, closely resembling that of 

 htnosa in quality. Cheeks in front of ears nearly naked. 

 Ears very sparingly haired on outer surface, nearly naked 

 within. Forearm, thumb, and outer edge of dorsal surface 

 of wing clothed with tufts of hair ; upper surface of tibia, 

 hind foot, and tail similarly clothed. Interfemoral membrane 

 with tufts of hair along the veins on dorsal surface, similar 

 but smaller tufts of hair on ventral surface ; with a well- 

 developed posterior fringe. Ears smaller than in lanosa^ with 

 a somewhat deeper, though narrower, lateral eniargination 

 towards the tip; tragus normal. 



General colour of back between " sepia " and " dusky 

 drab/' passing to a light grey on top of head and muzzle. 

 Dorijul hairs with slaty bases, mostly with long yellowish- 

 brown tips; in many the tips are silvery, and these silver 

 lips produce a quite conspicuous "lining" on the back and 

 rump. Under surface siWery grey, darkened irregularly by 

 the partly visible slaty bases of the hairs. Hairs on forearm, 

 wings, legs, tail, and the upper surface of the interfemoral 

 membrane yellowish ; those on the ventral surface of the 

 membrane are silver. 



Skull about as large as that of ^. lanosa, from which it is 

 distinguished by its relatively narrower brain-case, more 

 boldly convex frontal region, narrower rostrum, and more 

 nearly parallel tooth-rows, the width between the outer borders 

 of the last molars markedly less in |)ro|)ortion to the width 

 across the canines. Dentition not essentially different. Outer 

 upper incisor about three-fourths the height of inner incisor, 

 rather stouter than the latter in cross-section, atid with a well- 

 developed internal basal cusp. Inner incisor with a posterior 

 secondary cusp, the summit of which is a little lej^s lofty than 

 the outer incisor. Middle upper premolar smaller in cross- 

 section than the anterior premolar. 



Collector's measurements (taken on the flesh). — Head and body 39 iniii. ; 

 tail 40 ; hind foot 6 ; ear 12. 



Win(/-vieasurements (from skin). — Forearm 30'5 ; third digit, total 

 length 06, its metacarpal and phalanges 1 and 2 being respectively 32, 

 10, and 18 ; fifth digit 4:6"5, the metacarpal and phalanges being oOo, 9, 

 and 7'0. 



Skull measurements (those of 7. 1. 1. 538, a coLype of lanosa, being 

 added iu parentheses for comparison). — Greatest h'ligth 13 (I3"4); con- 

 dyle to canine ITS (11"5) ; canine to ?/i' ol (o-2j ; width across canines 



ylnn. cC-iVay. iV. //i*7. Scr. 9. Vol, \\. 16 



