G4 



NORTH AMERICAN BATS 



Description. — Head flat, not very broad; face moderately 

 hairy. Lips thin, compressed. Facial crest elevated on a line 

 with the nostrils, which are small apertures with membranous 

 edges, wider externally than internally. They open almost 

 laterally, and have between them a shallow concavity. Ears 

 very large, slightly haired at internal border. The tragus is one- 

 half the height of the ear, straight on the inner edge, diverging 

 on the outer, with a circular lobe at the base almost at right 

 angles to the tragus proper. Hair long, fine and soft. Above 

 it is dark at base — almost blackish ; tips dusky, approaching to 

 brown. The base of ear covered with hair — a delicate line ex- 

 tending up the internal border. 



The fur of the belly is like that of the back, blackish at base 

 with grayish tips running to white toward the pubis. Inter- 

 femoral membrane naked ; base of thumb naked. Thumb and foot 

 slender ; a few long hairs are seen on the back of the latter. 



Originally described by ]\Iajor Leconte, this species was re- 

 named by Mr. Cooper, as above cited. Tliis naturalist argued 

 that the inappropriate title was suflBcieut excuse for rendering it 

 obsolete. In reproducing the appellation of Leconte, I con- 

 sider that, however unfortunate an author's selection of a specific 

 name may be, this alone is no reason why he should be deprived 

 of the right to the priority of the description. 



Hab. Confined to the South Atlantic States. 



I am informed by Prof. Baird that specimens of a Synotus, 

 probably of this species, were received some years ago by the 

 Smithsonian Institution, from Meadville, Pa., but that they have 

 become in some way misplaced and are not now to be found. 



Measurements. 



