of the Genera of Bat. 33 



Antehellx ? Tragus ? Cutting teeth ? Tail 



bare, partly enveloped in the short interfemoral membrane. 

 Great toe large, opposible. 

 18. Dysoi'es, Illig. not F. Ctiv. — Ears large, pendant, 

 united over or close together on the forehead. Antehelix 

 and antetragus large, distinct; lobule tubercular, large; 

 tragus small, sometimes reduced to a point. Cutting 

 teeth |. Face large, lip thick, grooved. Tail base enve- 

 loped with the short interfemoral membrane; end free. — 

 This genus includes the genera Diriops of Savi, Nyctinomus 

 and MoUossus of Geoffi'oy, and perhaps Thyropterus of Spix, 

 and Stenoderma of Geoffroy. 

 * * 



? 19. Myopteris, Geaf. — " Ears separated, distinct, small. 

 Tragus small. Cutting teeth |. Tail half enveloped." — 

 GeoJ. 



**** Tail attached, half as long as the memhrane. 



20. ^LLo, Leach. — " Ears approximating, short, very broad. 

 Tragus none. Cutting teeth |. Tail attached, half as 

 long as the large interfemoral membrane. Limbs long." 

 I have not had the opportunity of examining the twp latter 

 genera. The genus Dysopes of F. Cuvier, which probably 

 belongs to this group, has only been established from the 

 examination of a cranium. 



Teeth bluntly tubercular. Tragus none. Index-finger often 

 clawed. 

 Fam. 4. PTEROPINA. — Head long, conical,— Nose end two cut, 

 nostrils tubular ; lips small. — Ears. Concha moderate, thick, coni- 

 cal, lateral edges united in front so as to form a conical meatus 

 auditorius without any distinct tragus or convolutions. — Wings 

 large, with a broad membrane uniting the thumb, so that the fin- 

 gers and thumb form a cone, when expanded. The index-finger 

 of three bony joints generally ending in a sharp claw. Thumb 

 long, membrane often arising from near the centre of the back. 

 Interfemoral membrane very short, sometimes wanting. Tail very 

 short, sometimes deficient. — Cutting teeth. — Feet long. — Toes 

 nearly equal. — Eating fruit, congregating together. 



21. Pteuopus, Geoff. — Index-finger clawed. Tongue short. 

 Head moderately long. The genus Cynopterus of F. Cu- 

 vier only (lifters in having a grinder less on each side ; and 

 every true zoologist must allow that it is not for tlic benefit 

 of science to adopt such genera. — Inhabits India and Pol}'- 

 nesia. — The African and Madeira Plcrupi of Bowdich 

 appear to be J^i'sj)crtiliones, 



22. Macuoci.ossus, 1\ Cuv. not Fab. — Index-finger clawed. 

 Head very long. Tongue very long, extensile. 



N. S. Vol. 0. No. 31 . July 1829. F 23. Haii- 



