LASIONYCTERIS. 



PIPISTRELLUS. 



white on the back, belly and fur of interfemoral membrane; largest 

 amount of white on middle of back. 



Measurements. "Total length, 95-105.8; tail vertebrae, 38-44; 

 tibia, 15-17; foot, 7-8; forearm, 39-43; thumb, 4.3-6.2; longest 

 finger, 68-75; ear from meatus, 15. 4-16; width of ear, 11-14.1; tra- 

 gus, 5.6-6.7." (Miller.) 



I. 



107. Pipistrellus. 



=; C. ^—■, P. "="; M. fc^ = 

 3 I— I 2—2' 3—3 



34- 



Pipistrellus. Kaup. Skizzirte Entwick-Gesch. u. Naturh. Syst. d. 

 Europ. Thierw., 1829, Th. i, p. 98. Type. VcspertiHo 

 pipistrellus, Schreb. 

 Vesperiigo, Keyserl. & Bias. Wiegm. Archiv. f. Naturg. , 5 ter 



Jahrg., 1S39, Bd. i, p. 312 (Part). 

 Nannugo, Kolenati, AUgem. Deutsch. Naturhist. Zeitg. , Dresden, 



Neue Folge, 1S56, 11, pp. 131, 169. 

 Hypsugo, Kolenati, Allgem. Deutsch. Naturhist. Zeitg. , Dresden, 



Neue Folge, 1856, 11, pp. 131, 169. 

 Scotophilus, H. Allen (nee Leach), Mon. N. Am. Bats, 1864, p. 27. 

 Skull light, brain-case inflated; rostrum broad; ears longer than 

 broad, tapering, tip rounded; tragus straight; interfemoral mem- 

 brane behind with hair on basal third; mammae two. 



Fig. 86. Pipistrellus hesperus. 



No. 5080 Field Columbian Museum Coll. 



Skull enlarged 3 times. Incisors enlarged lo times. 



