8TEN0DEEMATA. 513 



6*. Bony palate not extending back- 

 wards, deeply emarginate in 

 the centre between the molars. 

 aa. Crown of the head slightly 

 elevated above the face- 

 line. 

 y. Upper middle incisors 

 straight, broad, or con- 

 ical ; molars as in A?-- [p. 526. 



tibeus 25. Stenoderma, — ' 



fiJ3. Crown of the head greatly 

 elevated above the very 

 broad and short muzzle. 

 6. Upper middle incisoi-s 

 straight, conical ; mo- 

 lars as in Stenoderma, 



but narrower 26. Ametrida, p. 530. .'-" 



b'". Nasal opening in the skull pro- 

 longed backwards by a longitu- 

 dinal fissure in the centre between 

 the orbits ; the second m,olars in 

 both jaws larger than the first, 

 t. Upper middle incisors as in 



yampyrops; skull narrower [p. 531. 



in front 27. Chihodebma, 



h". Facial portion of the skuU greatly 

 elevated in front. 

 C Upper incisors straight, conical; 

 second (last) molar in both 



jaws very small 28. Pygoderma, p. 536. - 



b. Muzzle conical, 



v. Crowns of the anterior molar teeth rather 

 nan-ow 

 their 

 transverse diameter. 



»7. Nose-leaf well developed, as in 

 Artibeus ; interfemoral mem- 

 brane very narrow, margining 



the legs 29. Sttjrnira, p. 538. — 



c'. Crown of the molar teeth broad, their 

 transverse exceeding their longitu- 

 dinal diameter. 



0. Nose-leaf very short behind ; [p. 540. 



interfemoral membrane large 30. Bbachyphylla, ' ^ 



B. No distinct nose-leaf; nostrils opening in a 

 concavity at the extremity of the muzzle. 

 a. Muzzle short and very broad in front. 



1. Face with naked elevated cu- 



taneous ridges; throat with 

 transverse bands ; teeth as in 

 Stenoderma 31, Centurio, p. 542. 



V and longitudinally grooved, 

 longitudinal equalling their 



2i. 



