ALLEN : NOTES ON CHIROPTERA. 39 



whose outline is nearly semicircular but tlatteued. The outer basal three-fourths 

 of the ear-couch is provided with about a dozen transverse rugae. Tragus thick, 

 acuminate, triangular in section, with a basal lobe, succeeded distally by a deep 

 notch. 



J Measurements. — External measurements of the type : length of head and body, 

 76; eye to nostril, 7; ear from meatus, 20.5; ear from crown, 13.5 ; tragus, 6; 

 forearm, 55.5 ; thumb, 15.3; 2d digit, metacarpal, 45 ; 3d digit, metacarpal, 54; 

 1st phalanx, 20 ; 2d phalanx, 30 ; 3d phalanx and cartilaguious tip, 17 ; ■Ith digit, 

 metacarpal, 53 ; 1st phalanx, 16 ; 2d phalanx and tip, 21 ; 5th digit, metacarpal, 

 54.5; 1st phalanx, 12.4; 2d phalanx and tip, 17-5; tibia, 18.5; foot, 14 ; cal- 

 car, 6 ; nose leaf, greatest length, 12.4; greatest width, 7; width of interfemoral 

 membrane medially, 6.5. 



Skull and Teeth. — The skull is of the Vampyrops type, with broad short muzzle 

 and narrow braincase, with an evenly convex profile. The sagittal crest is only 

 slightly developed. Dental formula : 



^2-2' ^1-1' ^-'^ 2 -2'^'^ 3-3- 



The suppression of the metacone in the second upper molar gives that tooth a 

 very fiat appearance in side view as contrasted with the first upper molar. The 

 skull of the type measures : greatest length, 29 ; basal length, 22.8 ; interorbital 

 constriction, 7; greatest width outside second upper molar, 13; palatal length, 

 15; zygomatic breadth, 18.5; mastoid breadth, 14.3; mandible, 20; maxillary 

 tooth row (exclusive of incisors), 10.5 ; mandibular tooth row (exclusive of 

 incisors") 11.6. 



.s. — Hitherto but one species of the genus Vampyrodes has been recog- 

 nized, /-'. caracciolae (Thomas). This was described from a Trinidad specimen, 

 which probably represents an island form. I have found no record of additional 

 specimens from Trinidad, and its presence on the mainland of South America 

 seems hitherto to have escaped notice. It is therefore of especial interest to find 

 tills larger representative of the genus in Panama. In addition to its greater 

 size, there seem to be color differences as well, for Thomas does not mention the 

 short inferior cheek stripe that is present in our specimen. 



Artibeus planirostris (Spix). 



In an adult male specim* i from Bahia, Brazil, the evanescent third upper 

 molar usually found in thib species is absent on both sides, tiiough in a second 

 specimen from the same localitv and a third from Rio Janeiro this tooth is pres- 

 ent. No doubt the absence of his small molar in two specimens (Nos. 10,454, 

 10,455) from Bogaba and Boquet", Panama, respectively, led to tlieir identifica- 

 tion as young of Artibeus hitermedius (Bangs, Chiriqui Mammalia. Bull. Mus. 

 Comp. Zool., 1902, vol. 39, p. 50), with the description of which they seemed 

 to agree fairly well. As stated by Mr. Bangs, however, both specimens are quite 



