85 



1806. Vespertilio carolinensis, Geofifroy St. Hilaire, Ann. du Mus., 1806, viii, 

 193, pi. xlvii, f. 7.— Harl., Fn. Am., 1825, 9.— Godman, Am. 

 Nat. Hist., i, 1831, 67.— LeConte, McMurt. Cuv., i, 1831, 431.— 

 Cooper, Ann. Lye. N. Y., iv, 1837, 60.— DeKay, N Y. Fn., i, 1842, 

 pi. 2, f. 1.— Desm., Mam., i, 1820, 136.— Temm., Man., ii, 1835, 

 237.— LeConte, Proc. Acad. Nat. Sci. Phila., 1855, 434.— Wag- 

 ner, Suppl. Schreber, v, 1855, 753. — Woodhouse, Sitgr. Rep. 

 Zuni and Col. Rivers, 1854, p. 43. 

 1818. Vespertilio pTtaiops, Rafinesque, Am. Month. Mag., 1818, 445. — Le' 

 Conte, Proc. Acad. Nat. Sci. Phila., 1855, 434. — Wagner, Suppl. 

 Schreber, 1855, 756. 

 1828. Vespertilio arcvatus, Say, Long's Exped , 1823, 167. 

 1835. Vespertilio ursinus, Temm.. Mon. Mamm., ii, 1835, 235.-^LeConte, 



Proc. Acad. Nat. Sci. Phila., 1855, 434. 

 1875. Vespertilio (Vesperus) fuscus, Coues and Yarrow, Geog. and Geolog. 

 Expl. and Surv. West 100th Merid., v, 1875, 92. 

 ScotophUus carolinensis, Allen, Monog., 28. 

 Specific Characters. — Length 3 to 4 ; tail 1.33 to 1.50 ; extent 10 to 12 ; 

 longest finger 2.66 to 3; arm 1.50 to 2; ear about .50 in height; molars 

 jZ^ — front upper one narrowest, the front lower ones smaller than the 

 other three ; incisors |-:|- — lateral upper pair smaller than central pair ; 

 base of foot with a rounded swelling; tip of tail exserted; wing-mem- 

 brane reaching base of toes; no extension of fur on the wing membrane; 

 leg membrane furred at basal fifth on upper side, elsewhere more or less 

 perfectly naked ; ears moderate, furred one-half to one-third up the back, 

 turned more or less outward, with convex inner and straight or slightly 

 emarginated outer border, and well developed basal lobe; tragus nearly 

 half as high as auricle, its tip never pointed, outer border notched near the 

 base ; nostrils emarginate ; head flat ; hairs dark-plumbeous, or dark- 

 cinereous on the basal part, a variable shade of brown at the ends, and 

 usually lighter on the under surface of the body than on the upper. 



Distribution — Reported from widely separated localities in the United 

 States ; from Cincinnati by Mr. F. W. Langdon. • 



Genus Atalapha Rafinesque. 



Atalapha, Nycticejus, Ladurus, Rafinesque. 

 Nyciicejus et Lasiurus, Allen, Monog., 11.14. 



Generic Characters. — Adult dentition: i. i-:J-; c. V-V; i^- t-t (subg. Nycti- 

 cejus), or |:| (subg. Ladurus')=2iO or 32 teeth. The variable tooth is the 

 anterior premolar, absent in Nycticejus, present in Lasiurus, but minute 

 and liable to be overlooked, as it is hidden by the approximation of the 

 next premolar to the canine. 



