434 [December 



indeed ridiculous, I have substituted for it the name given to it by me many 

 years ago and mentioned in Dr. McMurtrie's translatioa of the Regne Anunale. 



All the species of American Bats described by the illustrious French Natural- 

 ist in Xouv. Annales du Museum vol. i. p. 1 were given by me to his brother the 

 Baron, aud I distinctly remember this species as having been among them. 



V. fuscus. Palisot de Beauvoisl. c, V. arcuatus Say, Long's expedition 1. c, 

 V. gryphus Cuvier 1 c. p. 15. 



Dentition. Upper jaw. incisors 2-2, the anterior one emarginate, the posterior 

 one very small. False tuolars 1-1 concave on the outer and inner surfaces. 

 Lower jaw false molars 2-2. Molars and canines in both jaws like these of the 

 preceding species. 



Hair long dark plumbeous, above tipt. with chestnut brown of different shades 

 of intensity, passing into rusty brown and fawn color, beneath with paler shades 

 of the same colors and sometimes with cinereous brown or grey. Face black, 

 du<ky or brown, according to the darker or lighter color of the fur, neat ly naked, 

 with a few scattered coarse hairs. Nose flat, blunt, emarginate, and with the chin 

 rugous. Ears dusky or brown, shorter than the head, outwardly hairy at toe 

 base for one third of their length, upright, somewhat triangular, blunt, the hinder 

 edge very convex, slightly emarginate near the tip, revolute on the outer edge. 

 Orillon acinaciform obtuse. Membrane naked, hairy only next the body, black, 

 dusky or brown. Interfemoral including the tail, except the three last joints, 

 naked except a triangular patch of hair at the root of the tail. 



Length 3 in. Tail 1-55, naked p.irt -2. Extent 12-5. Head -9. Ears -6. Oril- 

 lon -22. 



Very common particularly in the Northern States. 



V. carolinbnsis. Geoff. St. Hilaire, Ann. du Museum, viii. p. 193 



Dentition the same is in V. fuscus. 



Hair dark plumbeous, above tipped with chestnut brown, beneath with cinere- 

 ous brown. Face black nearly naked with a few scattered coarse hairs. Nose 

 flat, blunt, emarginate and with the chin rugous. Ears black rather long, out- 

 wardly hairy for one half of their length, ovate, upright, blunt, revolute and 

 emarginate on the hinder edge. Orillon lanceolate, blunt, more convex on the 

 inner than ou the outer side. Membrane black, naked, interfemoral naked ex- 

 cept beneath, where there is a triangular patch of fur which extends from the 

 insertion of the tail for one third its length ; including the tail except its three 

 last joints, and tarnished on the under side with some scattering hairs. 



Length 4 4. Tail 1-9, naked part -2. Extent 11 8. Head -9. Ears -7. Orillon -3 



Inhabits Georgia and Carolina ; very much resembles the preceding, but is 

 easily distinguished by the hairy ears and the differently shaped orillon. 



V. ursinu3 Temm. 1. c. p. 235. 



Dentition similar to that of the two preceding specie?. 



Hair dark plumbeous, above tipped with bright chestnut brown, beneath with 

 paler or cinereous brown. Face olack, naked with coarse scattering hairs ; nose 

 flat, blunt emarginate. Ears dusky, shorter than the head, hairy outwardly for 

 nearly one fourth their length, upright, oval, entire, revolute on the outer edge, 

 Orillon acinaciform, obtuse. Membrane black, naked, hairy only near the body, 

 interfemoral entirely naked, including the tail except the three last joints. 



Length 2-3. Tail 1-G5, naked part -2. Extent 12-15. Head -9. Ears -5. Orillon -2. 



Inhabits New York, rather rare. 



V. phaiops Temm. 1. c. p. 234. 



Dentition as in the preceding. 



Hair dark plumbeous, above tipped with chestnut brown, beneath with paler 

 or with cinereous brown or greyish. Face black, nearly naked with a few coarse 

 hairs. Nose flat, blunt, rugose, emarginate. Ears black, shorter than the head, 

 outwardly hairy for about one third of their length, somewhat triangular, up- 

 right, blunt, sinuous or bi-einarginate on the outer edge. Orillon oblong, round- 

 ed at the tip. Membrane black, naked ; interfemoral naked except some scattered 

 hairs on its under side, including the tail except the three last joints. 



