26 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.42. 



again brown like base; in region in front of shoulders the light inter- 

 mediate area becomes more noticeable, particularly near base of 

 ear and behind nose leaf; a whitish dorsal Kne less conspicuous than 

 in C. salvini and becoming obsolete posteriorly. Underparts ecru- 

 drab, with a sUght and very fine variegation caused by minute 

 whitish hair tips and brownish subterminal annulation. 



ShuU and teeth. — The skull differs from that of Ohiroderma viUosum 

 as figured by Peters in its broader general form due to shortening 

 without proportional narrowuig. The profile of rostrum immediately 

 behind nasal aperture is concave, while in the related species it is 

 represented as decidedly convex. Teeth hke those of C. villosum, 

 but incisors apparently more reduced, the outer upper tooth not 

 nearly filling space between inner incisor and canine, the lower teeth 

 distinctly spaced, their cutting edges scarcely bilobed. 



Measurements. — Type: Head and body, 65 mm.; tibia, 17; foot, 

 10.4; forearm, 45; thumb, 10.5; third finger, 99; fifth finger, 70; ear 

 from meatus, 18; width of ear, 12.5; condylobasal length of skull, 

 22 (24.4) ;i greatest length, 24.6 (26.8) ;2 zygomatic breadth, 15.6 

 ( — ); postorbital constriction, 5.8 (5.8); interorbital constriction, 6.2 

 (6.4); mastoid breadth, 12.2 (12.8); breadth of brain case, 10.4 

 (10.4); depth of brain case at middle, 8.4 (— ); mandible, 8.8 (10); 

 maxillary tooth row, 8.8 (10); mandibular tooth row, 9.2 (10.6). 



Specimens examined. — Two, both from the type-locahty. 



ARTIBEUS JAMAICENSIS JAMAICENSIS (Gosse). 



Three adults from Taboga Island and one young (too immature 

 to be positively identified) from the Chilibrillo cave. 



DESMODUS ROTUNDUS (Geofifroy). 



Adult female from Taboga Island. Measurements: Head and 

 body, 82 mm.; tibia, 27.2; foot, 16; forearm, 59.6; thumb, 16.6; 

 third finger, 98; fifth fmger, 77; ear from meatus, 17.4; width of ear, 

 16; condylobasal length of skull, 21.4; greatest length, 24; zygomatic 

 breadth, 12; postorbital constriction, 5.8; breadth of brain case, 11.8; 

 depth of brain case at middle, 10.6; mandible, 15.2; maxillary tooth 

 row (entire), 6.4; mandibular tooth row (entire), 7. 



EUMOPS GLAUCINUS (Wagner). 



Adult male, Paraiso, April 28, 1911. Measurements: Head and 

 body, 80 mm.; tail, 48; tibia, 16.4; foot, 11; forearm, 56; thumb, 10; 

 thkd finger, 114; fifth finger, 55; ear from meatus, 20; width of ear, 

 22; condylobasal length of skull, 21; greatest length, 23.2; zygomatic 

 breadth, 14; interorbital constriction, 4.4; lachrymal breadth, 8; 

 breadth of brain case, 11; depth of brain case at middle, 7; mandible, 

 16.6; maxillary tooth row, 9.2; mandibular tooth row, 10.2. 



> Measurements in parenthesis are those of an adult C. salvini from Angostura, Costa Kica (No. 22849). 

 » In C. villosum the greatest length is 25.7 mm.; zygomatic breadth, 16.5. 



