1908.] DR. KNUD ANDERSEN OX BATS. 293 



U.S. Nationcal Museum* : — Merida, Venezuela (1), witli skull. 



Range. — Guiana, southward at least to Para, northward to 

 K.W. Venezuela, including the island of Trinidad. — In N.W. 

 Venezuela it meets A. c. hogotensis ; in this region the two races 

 apparently merge into one another. 



Gervais's Artibeus cinereus, 1856. — Type locality : Brazil. — 

 Notwithstanding the rather defective desci'iption there cannot be 

 much doubt as to the identification of Gervais's specimen ; it is a 

 small Artibeus with |- molars, a small cusp 7 of m' (see PI. ix. 

 fig. 4), and the locality is, as mentioned, " Bresil." The combi- 

 nation of the habitat and the two characters quoted exclude all 

 other known species of the genus. The coloured figure on PI. ix., 

 stated to be of natural size, is about 16 p. ct. too large in linear 

 dimensions (compare the measurements of the foreai'xa and tibia 

 as given by Gervais) ; the metacarpals and phalanges are very 

 carelessly drawn. 



Artibeus cinereus bogotexsis K. And. 



1880. ?" Artibeus quadrivittatus Pet.," Dobsou, P. Z. S. p. 465. — Popayau, 



N. Colombia (Paris Museum ; specimen not examined). 

 1901. Dermanura qwadrivittatiini (not Peters) Pobinson & Lyon, Proc. U.S. Xat. 



]VIus. xxiv. (no. 1246) p. 510. — San Julian, Venezuela (only specimens W.U. 



1586 and 1617 examined). 

 1906. Artibeus cinereus bogotensis Knud Andersen, Ann. & Ma": N. H. (7) xviii. 



p. 421 (Dec. 1906). — Type locality : Curiche, nr. Bogota, Colombia. 



Diagnosis. — Similar to A. c. cinereus, but teeth, skull, and 

 external dimensions averaging larger. Forearm 41 '2-44 mm. 



A. c. bogotensis and cinereus. — The difierences between this 

 form and its eastern representative, A. c. cinereus, have been 

 pointed out above, p. 292. 



Measurements. — On p. 295. 



Specimens examined. — 9 specimens (8 skins) with skulls, from 

 the following localities : — 



British Museum : — Colombia : Bogota region, various localities 

 (5). N.W. Venezuela (1). 



U.S. National Museum f : — San Julian, 8 miles east of La 

 Guaira, Venezuela (2). Merida, Venezuela (1). 



Range. — From Central Colombia to N.W. Venezuela, where 

 it meets A. c. cinereus. In the latter region the two races 

 apparently merge into one another. 



Artibeus rosexbergi Thos. 



1897. Artibeus {Dermanura ?) rosenhercji Tliomas, Ann. & Mag. X. H. (6) xx. 

 pp. 545-46 (Deo. 1897). — Type locality : Cachavi, N. Ecuador. 



Diagnosis. — Molars f. Cusp 7 of m^ small, m" equal to about 

 ^ the area of m\ Forearm 37-8-39"8 mm. 



Skull. — Very similar in shape to that of A. loatsoni and 

 A. cinereus cinereus. 



Teeth (text-fig. 55). — Different from those of any other species of 



* U.S. N. M. no. 123348. 



t U.S. N. M. nos. 105432-33 (nos. W.R. 1586 and 1617), 123344. 



