ALLEN : NOTES ON CHIKOPTERA. 47 



are sparsely scattered on both surfaces of the humerus, the forearm, finger boues, 

 tail, and tibiae. 



Description of the Type. — Color of the fur in alcohol dorsally and ventrally 

 nearly mummy brown, lighter, approaching hair brown at the tips. As the type 

 has been immersed in alcohol for many years, it is possible that the fur is stdl 

 darker in the living animal. The ears and muzzle are pale. 



Dorsally the fur covers the body thickly, but is practically absent from the 

 membranes. The bases only of the ears are clothed, and the somewhat swollen 

 muzzle is thinly clad with short minute hairs and sparser longer ones. Ventrally 

 the membranes are likewise naked, save for the proximal half of the tail and inter- 

 femoral, which are thinly covered with short hairs. 



The ear, laid forward, reaches nearly to the nostril ; it is rounded at the inner 

 basal angle, then nearly straight in outline to the broadly rounded tip. Exter- 

 nally there is a slight concavity below the tip, and the lower half is again nearly 

 straight to the basal notch that separates off the low rounded terminal lobe. The 

 tragus is narrow, bluntly pointed, and rather short. 



The wing membrane arises from the base of the toes. The calcar is strongly 

 keeled, but without a terminal lobe. The tip of the tail is free for about 2.5 mm. 

 The curious wart-like papillae characteristic of this genus seem much fewer than 

 in S. flowed from the Soudan and are practically absent from the membranes, 

 whereas in the latter species the upper side of the forearms, legs, and tail, and all 

 the proximal portion of the wings and interfemoral membrane are thickly studded 

 with them. In the new species there are dorsally some half-dozen papillae on the 

 humerus, a few at the proximal end of the forearm, but a thicker cluster of from 

 15 to 20 at the distal end of the forearm ; a few are also scattered along the meta- 

 carpals and phalanges, and on the dorsal surface of the femora, tibiae, and meta- 

 tarsals, as well as at the region of the joints on the upper side of the tail. 

 Ventrally the distribution of these warts is about the same, but they are more 

 numerous on the humerus and almost wholly lacking on the fingers, tibiae, and 

 tail. 



Skull and Teeth. — As stated by Miller, the skull resembles that of a small 

 Eptesicus, and is somewhat flattened, with an almost straight dorsal profile. The 

 inner upper incisors are long and slender with a faint indication of a cusp near 

 the tip, laterally. The outer incisor is not quite half the height of the inner, and 

 like that tooth has a strongly developed ciugulum that forms a slight cingulum 

 cusp. The outer cusps of the mandibular molars are long and rather slender. 



Measurements. — The external measurements of the type are as follows-, head 

 and body, 49; tail, 37 ; ear, 13.5 ; tragus, 5 ; forearm, 35 ; thumb, 5.3; 2d digit, 

 metacarpal, 30.5 ; 3d digit, metacarpal, 32.3 ; 1st phalanx, 12.7 ; 2d phalanx, 9 ; 

 3d phalanx and tip, 7; 4th digit, metacarpal, 32.5 ; 1st phalanx, 12; 2d phalanx 

 and tip, 8 ; 5th digit, metacarpal, 32.5 ; 1st phalanx, 9.2 ; 2d phalanx and tip, 

 5.6; tibia, 12.8; foot, 6. 



Skull : greatest length, 14.3 ; palatal length, 6.6 ; interorbital constriction, 3.6 ; 

 mastoid breadth, 8; palatal breadth outside second molar, 5.6; mandible, 10.3; 

 maxillary tooth row (exclusive of incisors), -5 ; mandibular tooth row (exclusive of 

 incisors), 5.5. 



