32 Mr. Gray on the Natural Arrangement 



having the teeth of Vespertilio7iina, and the tail and wings 

 of Noctilionina. 



? 



*** Tail very short, covered isoith hony valve. 



14<. DiCLiDURUS,Pr.iVf«:r. — No character. " Ears short, broad. 



Tragus ? Wing long. jArms very long and strong. 



Tibia long and thin. Spur long. Tail composed of two 

 concave horny plates ; the lower triangular and acute, fitted 

 to the other, of a larger size." Pr. Max. Diclidurus Frey- 

 reissii. Pr. Max. the D. albiis. Isis 1819, p. 1629. From 

 the figure the interfemoral membranes appear to be large 

 and truncated. 



Fam. 3. NOCTILIONINA.— Head large.— Face nakedish.— Lips 

 large pendulous, often grooved or warty. — Ears : Concha thick, 

 leathery, often large and folded. Helix thickened, interrupted 

 in front. Antehelix and antetragus costate, often very distinct : 

 lobule thickened, tubercular. Tragus small, sometimes reduced 

 to a small tubercle, placed deep in the meatus auditorius. — Wings 

 small. — Index-finger of two long joints ; the membranes sometimes 

 arising from near the centre of the back, so as to leave a deep 

 nursing-pouch on each side. — Thumb short, thick ; interfemoral 

 membrane generally truncated. — Tail thick, end free, either be- 

 yond or on the upper or lower surface of the membrane. — Feet 

 large, great toes largest, sometimes opposible. — Cutting teeth 

 very variable, ^ ^, or ^ or |- ; upper teeth near together in the 

 front of the mouth, leaving a space between them and the ca- 

 nines ; sometimes wanting ; the lower small. — Eating insects. 



Tail, end free on the upper surface. 



15. NocTLio, Geoff. — Ears separate, distinct, small. Antehelix 

 small. Tragus linear, dentated. Forehead simple. Cut- 

 ting teeth # or |. Tail short, enveloped. Tip produced 

 on the upper surface of the truncated interfemoral mem- 

 brane. Perhaps Ccclano of Dr. Leach, will form part of 

 this genus ; was it not established from N. unicolor of Geof- 

 froy? 



16. Taphagous, Geoff. — Ears separate, distinct, small, 

 drooping. Antehelix indistinct, lobule spreading. Tragus 

 short, blunt. Cutting teeth §. Forehead with a conca- 

 vity. Tail half enveloped, end produced on the upper sur- 

 face of the long truncated interfemoral membrane. 



* * Tail base enveloped, e7id produced beyond the inter- 

 femoral membrane. 



17. Cheiromeles, Horsf. — Ears separate, distant, small. 



Antehelix ? 



