LASIURUS. 



21 



Lasiurus cinereiis, Allen 



The Hoary Bat. 

 Fig. 18. 



Fie 19. 



Vespertilio cinereus, Palisot de Beadvois, Cat. Peale's Mus. Phila. 1796, 

 14. Leconte, Proc. Pliila.-Acad. Nat. Sci. 1855, 433. 



Vespertilio pruinosus, Say, Long's Exp. to Rky. Mts. 1823, 67.— Harlan, 

 Fauna Amer. 1825, 21.— Ib., Med. and Phys. Researches, 1831, 28.— 

 GoDMAN, Amer. Nat. Hist. 1826, 68, pi. ii, f. 3.— Richardson, Faiina 

 Bor. Amer. 1829, 1.— Cooper, Ann. Lye. N. York, IV, 1837, 54.— 

 DeKay, Nat. Hist. N! York (Zool.), 1842, 7, pi. ii, f. 2. 



Scotophilus pruinosus, Gray, Mag. Zool. and Bot. II, 1838, 498. 



Nycticrjus pruinosus, Temm. Monog. Mam. 1835, 154.— Wagner's Sclireb. 

 Saug. (SuppL) I, 1840, 544.— Ib. V, 1855, 770.— Schinz, Syn. Mam. 

 I, 1845, 197.— Max Pr. Wied, Archiv Naturg. 1861, 185. 



Lasiurus pruinosus, Tomes, Proc. Zool. Soc. Lond. 1857, 37. 



Descrijiiion.— Head large, flat and hairy. Sides of the face 

 somewhat inflated, the tips slightly whiskered. Nostrils wide 

 apart, snout rather high, emarginated. Lower lip with smooth, 

 naked space anteriorly. Ears broad as high, of a roundish 

 form with large internal lobe, which lies close to the head and 

 nearly covering the eyes and approaching closely the external 

 inferior lobe. The internal border is markedly convex : in some 

 specimens slightly emarginate at its tip— the external border being 

 thinner than the internal, less convex and somewhat irregular 

 in outline. The basal external lobe is very conspicuous and 

 abrupt, with obtuse summit, and terminates on a line with the 

 posterior angle of the eye. The tragus is broad, inner border 

 straight ; tip blunt, curved inwards ; external border longer than 

 internal, convex, upper two thirds convex the lower. The ears are 

 black on the borders, rather extensively haired without, to a less 

 extent within — the extreme border being naked. The tragus is 

 slightly haired in front. 



