URODEXMA. DERMANURA. 699 



of antitragus, 9; greatest width of ear, 8; greatest length of skull, 

 23.4; zygomatic width of skull, 13; front of incisors to posterior edge 

 of palate, 11.4; length of palate, posterior to last molars, 2.6; front 

 of upper canine alveolus to posterior edge of last upper molar, 8; 

 greatest width between outer surface of upper molars at alveoli, 9.6; 

 greatest length of mandible, 15; front of lower canine at alveolus to 

 posterior edge of last molar, 8.4." (Lyon, 1. c. ex Type.) 



162. Deriiiaiiura. 



Dermanura Gervais, Exped. Comte de Castelnau, Amer. Sud. 

 Mamm., Zool., 1855, p. 36. Type Dermanura cinereum Ger- 

 vais. 



Molars similar to those of Artibeiis, but only four pairs; inter- 

 femoral membrane emarginate ; other characters as in Artibeus. 



KEY TO THE SPECIES. PAGE 



A. Size small, uniform light yellowish brown ....... D. phceotis 699 



B. Size large, black tinged with ashy .............. D. cinereum 699 



660. phaeotis (Dermanura), Miller, Proc. Acad. Nat. Scien. Phila., 



1902, p. 405. 

 DARK-EARED BAT. 



Type locality. Chichen Itza, Yucatan. 



Genl. Char. Smaller than D. cinereum and paler; palate with 

 two rows of small foramina. 



Color. Uniform light yellowish brown, washed with broccoli 

 brown; ears dark brown without white edging; four facial whitish 

 stripes. 



Measurements. Forearm, 37; thumb, 9.6; second finger, 31; 

 third finger, 78; fourth finger, 62; fifth finger, 57; tibia, 14; foot, 

 9. Skull: greatest length, 19; zygomatic breadth, n.6; mastoid 

 breadth, 10. 



661. cinereum (Dermanura), Gerv., Expe"d. Castlenau, Ame"r. Sud. 



Mamm., Zool., 1855, p. 36, pi. vin, fig. 4; pi. ix, figs. 4 and 

 4a; pi. xi, fig. 3. 



tolteca (Stenoderma) , Sauss., Rev. Mag. Zool., 2me Se"r., xn, 1860, 

 p. 427, pi. xv, fig. 4. 



