434 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 99 



Pennant added that the bat of the latter locality "differs from the 

 former in size, being less; in all other respects agreed." An examina- 

 tion of available material from South and Central America and com- 

 parisons with published measurements show that the Colombian- 

 Venezuelan and Central American representatives of the species 

 indeed average smaller than the Peruvian form. It is best, therefore, 

 to conserve the name minor Osgood for the northern race, while the 

 type locality of Noctilio lahialis lahialis Kerr is restricted to Peru, 

 more specifically to the lower Rio Ucayali region in the department 

 of Loreto. Individual variation in color is so great among the fish- 

 eating bats that in selecting a type locality for a described form of 

 uncertain origin little importance can be attached to the color of 

 underparts, whether gray, buffy, orange, or red. Noctilio zaparo 

 Cabrera (Proc. Biol. Soc. Washington, vol. 20, p. 57, 1907), from 

 Ahuano, Rio Napo, eastern Ecuador, agrees in size with the north- 

 eastern Peruvian lahialis and must now be regarded a synonym of it. 

 The name Noctilio alhiventer SpLx (Simiarum et Vespert. Brasil., p. 58, 

 1823) based on a bat from the Rio Sao Francisco, Bahia, Brazil, is 

 preoccupied by Noctilio albiventris Desmarest (Nouv. Diet. Hist. 

 Nat., vol. 23, p. 15, 1818), based on a specimen from "TAmerique 

 meridionale." Unless comparisons of the type specimens with each 

 other and with typical lahialis show otherwise, the white-bellied bat 

 of eastern Brazil should be known as Noctilio lahialis alhiventer 

 Desmarest. 



Three specimens of the La Gloria series and the individual from 

 Rio Guaimaral are in the bright-orange color phase; the remaining 

 two specimens are in the brown phase. The underparts are approxi- 

 mately a tone paler than the upperparts. The pale median dorsal 

 stripe is well defined in the brov/n-phase individuals, weakly evident in 

 two of the others, barely suggested in another and absent in the sub- 

 adult from Rio Guaimaral. 



CHILONYCTERIS RUBIGINOSA FUSCA Allen 



Chilonycteris rubigincsa, Allen, Bull. Amer. Miis. Nat. Hist., vol. 20, p. 457, 



1904 (Cacagualito). 

 Chilonycteris rubiginosa fusca Allen, Bull. Amer. Mus. Nat. Hist., vol. 30, p. 



262, 1911. 



Type locality. — Las Quiguas, 5 miles south of Puerto Cabello, north- 

 ern Venezuela; altitude 650 feet. 



Specimens collected. — Six. Colonia Agricola de Caracolicito, southern 

 slope of Sierra Nevada de Santa Marta, 2 males, 3 females; Norosi, 

 Bolivar, 1 male. 



Measurements. — Head and body, 62-75; tail, 19-25; hind foot, 12- 

 14; ear, 21-22; forearm, 57.0-62.6; greatest length of skull, 21.6-23.3; 

 condylobasal length, 20.5-21.7; zygomatic breadth, 12.3-12.7; inter- 



