MAIVIMALS OF NORTHERN COLOMBIA — HERSHKOVITZ 449 



With the elimination of the dental characters held to be significant 

 by Andersen, the evidence presented by that author points to the 

 probable conspecificity of all the pygmy forms of Artibeus said to be 

 otherwise indistinguishable from either cinereus or toltecus. 



The following classification of the pygmy bats of the A. cinereus 

 group is based on examination of specimens in the collections of the 

 United States National Museum and the Chicago Natural History 

 Museum. These include the types of ravus, phaeotis, jucundum, and 

 anderseni, topotypes or near topotypes of glaucus, watsoni, bogotensis, 

 rosenbergi, and toltecus, and three pygmy Artibeus from the upper Rio 

 Pastaza, eastern Ecuador (in the Chicago Natural History Museum), 

 referable to either anderseni or pumilio but geographically nearer the 

 latter. Subspecific status of some of the forms listed is provisional. 



Artibeus cinereus cinereus Gervais, type locality, Brazil (quadrivittatus Peters, 

 from Surinam, is probably a synonym). 



Artibeus cinereus bogotensis Andersen, type locality, Curiche, near Bogotd, 

 Colombia. 



Artibeus cinereus rosenbergi Thomas, type locality, Cachavi, Esmeraldas, 

 Ecuador (rava Miller, from San Javier, Esmeraldas, Ecuador, a synonym). 



Artibeus cinereus glaucus Thomas, type locality, Chanchamayo, Junin, Peru. 



Artibe^is cinereus pumilio Thomas, type locality, Tushemo, near Masisea, 

 Rio Ucayali, Loreto, eastern Peru. 



Artibeus cinereus anderseni Osgood, type locality, Porto Velho, Rio Madeira, 

 Amazonas, Brazil. 



Artibeus cinereus watsoni Thomas, type locality, Bugaba, Chiriquf, Panamd. 



Artibeus cinereus toltecus Saussure, type locality, Mexico, here restricted to 

 Mirador, Veracruz, whence most of Saussure's Mexican material orig- 

 inated (jucundum Elliot, from Veracruz, Mexico, a synonym). 



Artibeus cinereus phaeotis Miller, type locality, Yucatdn, Mexico. 



SPHAERONYCTERIS TOXOPHYLLUM Peters 



Sphaeronycteris toxophyllum Peters, Sitzb. Akad. Wiss. Berlin, 1882, p. 989, 

 pi. 16.— Sanborn, Publ. Field Mus. Nat. Hist., zool. ser., vol. 27, p. 380, 

 1941 (Cucuta, Norte de Santander). 



Type locality. — South America. 



DESMODUS ROTUNDUS ROTUNDUS Geoffrey 



Phyllostoma rotundum Geofproy, Ann. Mus. Hist. Nat. Paris, vol. 15, p. 181, 1810. 

 Desmodus rufus, Allen, Bull. Araer. Must. Nat. Hist., vol. 13, p. 87, 1900 (Bonda). 

 Desmodus rotundus, Sanborn, Ann. Carnegie Mus., vol. 21, p. 180, 1932 (Bonda). 



Type locality. — Paraguay. 



Specimens collected. — Forty-seven. El Orinoco, Rio Cesar, 9 males 

 (4 in alcohol), 20 females (8 in alcohol); Villanueva, 7 males (3 in 

 alcohol), 11 females (5 in alcohol). 



Measurements. — The extremes of 14 fully adult females are preceded 

 by figures in parenthesis giving the measurements of the largest adult 

 male. Head and body, (76), 77-87; hind foot, (18), 15-19; ear, (19), 

 19-21; forearm, (58.4, of another male, in alcohol, 60.2), 56.9-62.7, 



