1904.] Allen, New Bats from Tropical America. 229 



Above brownish black, the basal portion of the fur paler; below 

 dark brown, considerably lighter than the dorsal surface; a large pale 

 axillary area. Ears and membranes blackish, the extreme tip of the 

 wing lighter; posterior border of forearm and basal portion of meta- 

 carpals slightly furred; edge of upper lip strongly bearded. Ears 

 medium, thick and heavy, the outer border slightly concave; antitra- 

 gus with rounded border, higher posteriorly than anteriorly. 



Measurements. Forearm, 55 mm.; thumb, 5; third finger: meta- 

 carpal, 57, first phal. 25, second phal. 25, third phal. 75; tibia, 16; 

 hind foot, 12; calcar, 17. Skull, total length 23; width of braincase, 



In comparison with P. milleri the skull is about one milli- 

 meter shorter, and the braincase one millimeter narrower; it 

 is more constricted interorbitally, with the rostral portion 

 relatively much broader as compared with the braincase; 

 palatal region narrower, with the palatal fossa much narrower, 

 in correlation with the greater interorbital constriction ; teeth 

 narrower, but the small premolar relatively larger than in 

 allied forms; lower canines slightly separated. It is much 

 smaller than P. abrasus, and differs from it in cranial charac- 

 ters in much the same way as it does from P. milleri. These 

 three forms, however, are closely related. 



Dermonotus suapurensis, sp. nov. 



Type, No. 17573, $ a ^-, Suapure, Venezuela, Oct. 26, 1901; S. M. 



Klages. 



Similar in general features to D. davyi but very much larger. Fore- 

 arm 51 mm., as against 45.5 in topotypes of D. davyi, and propor- 

 tionate differences in other measurements, or about one tenth greater. 

 Skull, total length, 17.2 (15 in davyi}; zygomatic breadth, 10 (9 in 

 davyi} ; width of braincase, 9 (8 in davyi} ; interorbital constriction, 

 4.5 (4 in davyi); height of braincase, 7.3 (6.5 in davyi} ; length of 

 lower jaw, 8.2 (7 in davyi}. 



In bulk the skull is fully one third larger than in davyi, and 

 nearly twice as great as in D. davyi fulvits. In the single 

 known specimen the pelage is dark fulvous on the head, 

 shoulders, and fore neck, much paler on the flanks and ab- 

 domen. Probably, however, it is dichromatic, like its allies 

 of the Mormoopinae. 



