404 PROCEEDINGS OF THE ACADEMY OF pVIay, 



Dermanura rava sp. nov. 



%)e.— Adult c? (skiu and skull), No. 113,338, Uuiled States 

 Katioual Museum. Collected at Sau Javier, uorthern Ecuador, 

 August 10, 1900, by G. Fleming. Original number, 12, 



Characters. — Smaller than Dermanura cinerea and D. tolteca and 

 color mucli paler ; ear with narrow whitish border. Skull smaller 

 than that of D. tolteca, the palatine foramina much more numerous. 



Color. — General color a light yellowish-brown, intermediate 

 between the cream -buff and clay color of Kidgway, the upper 

 parts, especially the region behind shoulders, washed wuth broccoli- 

 brown. Face with four ill-defined whitish stripes. Ears and 

 membranes light brown, the former distinctly edged with whitish. 



Skull. — Except for its noticeably smaller size, the skull does not 

 differ from that of D. tolteca in general appearance. It is distin- 

 guishable, however, by the number of small foramina in the palate, 

 which persist as two conspicuous rows of small perforations even 

 in very old individuals. 



Teeth. — The teeth are similar to those of Dermanura tolteca, 

 except that they are uniformly smaller. 



Measurements. — External measurements of type (from well-made 

 skin): Head and body, 55; tibia, 14; foot, 9.6 (8.6); forearm, 

 36; thumb, 10; second digit, 32; third digit, 82; fourth digit, 62; 

 fifth digit, 59; ear from meatus (estimated), 14; noseleaf from 

 margin of lip (dry), 10. 



Cranial measurements of type: Greatest length, 20 (22.4);^* 

 basal length, 17 (20); basilar length, 15 (17); median palatal 

 length, 9 (10); zygomatic bi'eadth, 12 (13); mastoid breadth, 11 

 (12); iuterorbital constriction, 5 (6); mandible, 13 (14.6); 

 maxillary toothrow (exclusive of incisors), 7 (7.4); mandibular 

 toothrow (exclusive of incisors), 7 (7.4). 



Specimens Examined. — Ten, from the following localities in 

 northern Ecuador : San Javier, 2 ; Corondelet, 4 ; Pambilar, 4. 



Remarks. — The series of ten specimens shows very little indi- 

 vidual variation. In two skins from Corondelet the color is less 

 yellow and more gray than in the others, a difference probably due 

 to dichromatism. 



" Measurements in parentheses are those of an adult male Dermanura 

 tolteca from Tetela del Vulcan, Morelos, Mexico (No. 52,051). 



