12. MOLOBSUB. 411 



Wings from tho ankles. 



Fur very short ; deep reddish brown above and beneath. The 

 face and ears are nearly naked. On the upper surface the ■wing- 

 membrane is covered as far as a line drawn from the middle of the 

 humerus to the middle of the femur, and short fur extends upon half 

 the antebrachial membrane, and behind the distal two thirds of the 

 forearm to the carpus, covering also the angle between the fourth and 

 fifth metacarpal bones ; behind, the base of the interfemoral mem- 

 brane also is covered. Beneath, the fur of the body extends upon 

 the wing-membrane almost as far outwards as a line drawn from the 

 elbow to the knee ; and a band passes outwards behind the elbow, 

 becoming gradually wider towards the carpus tUl it occupies a space 

 there extending from the forearm to the middle of the metacarpal 

 bone of the fifth finger, beyond which it passes and occupies the 

 angle between it and the metacarpal of the fourth finger, being 

 limited in its extent outwards by the muscular band extending to 

 the wing-membrane in this position ; a small space between the 

 proximal extremity of the fifth metacarpal and the short muscular 

 band, extending from the end of the forearm to the wing-membrane, 

 is naked. 



Upper incisors moderately long and acutely pointed, converging 

 inwards and forwards, their bases touching the canines, their inner 

 sides approximated, at the outer side of the base of each tooth a 

 small blunt projection from the cingulum, which touches the canines ; 

 the single upper premolar large and close to the canine ; lower 

 incisors two, bifid, in front of the closely approximated canines, 

 which have each a broad internal basal cusp ; first lower premolar 

 scarcely half the size of the second, which it lies so close to as to be 

 with difficulty distinguished in recent specimens as a separate tooth, 

 its outer and posterior side is partially covered by the obliquely di- 

 rected cingulum of the second premolar ; last upper molar narrow, 

 less than half the size of the antepentdtimate molar. 



Length (of an adult J ), bead and body 3"-5, tail 2", head l"-2, 

 ear 0"-65, tragus 0"-l, forearm 2"-l, thumb 0" -4 ; third finger — 

 metacarp. 2", 1st ph. 1"'05, 2nd ph. 1"-15 ; fourth finger — metacarp. 

 l"-9o, 1st ph. 0"-9, 2nd ph. 0"-2 ; fifth finger— metacarp. l"-3, 1st 

 ph. 0"-55, 2nd ph. 0"-25 ; tibia 0"-7, foot 0"-5. 



Hab. Mainland of Tropical America (Eio de Janeiro ; Pemambuco ; 

 Para ; liio Negro ; Dutch Guiana ; Oaxaca). 



a,b. (5 & $ ad., al. Oaxaca, Mexico. Purchased. 



c. 5 ad., al. Choctan. Purchased, 



t?. cJ ad., al. Pernambiico. J. P. G. Smith, Esq. [P.]. 



e. 2 ad., al. Brazil. 



f, y. 2 ad., al. M. Lidth de Jeude. 

 /;. skeleton. Brazil. 



