1855.] 437 



near the base hairy. Orillon long, subulate, broad at the base a little convex on 

 the inner side. Membrane naked dusky, interfemoral including the tail except 

 the last joint. 



Length 2.1. Tail .2. Naked part .1. Extent 10 in. Head .75. Ear 1.05. Orillon 

 .25. 



Inhabits Georgia. 



This species though at first sight very much resembling the so called Plecotus 

 auritus of Europe, differs from it particularly, in having the ears perfectly 

 separated at the base, and wants the small lobe or blunt tooth on their inner 

 edge. The cranium is entirely that of a Murinoid bat, and the teeth of the two 

 species agree. 



V. PALLIDUS. 



Dentition. Incisors 1-1, large simple. Canines 1-1, a little concave on the 

 outer side, with an internal, basal, rather blunt cusp. False molars 1-1. Molars 

 first and second as in all the others, the third with fout cusps, three of them 

 transverse, the interior one smaller, and one posterior. 



Lower jaw incisors .4. False molars 2-2, the anterior one smaller, rather 

 interior. First and second molars as in others, the third with three cusps, not 

 transverse, the interior one larger and transversely deeply emarginate. 



Hair light fawn-colored, tipped with darker, beneath paler. Face hairy dark 

 brown. Nose rounded, emarginate. Ears longer than the head, oval, entire, 

 very pale dusky brown. Orillon nearly one half the length of the ear, linear, 

 blunt. Membrane thin naked brown. Interfemoral including the tail except 

 the two last joints. 



Length 3. Tail 1.5. Naked part .1. Extent 12.1. Head .9. Ears .95. Orillon .4. 



Inhabits California. 



Differs from all the other species in having but 4 lower incisors ; I hesitate 

 therefore to arrange it with the Serinoid or Murinoid Bats and place it at ihe 

 end of these two families. 



Rhinopoma carolinense Geof. St. Hilaire, Diet, do Sciences Naturelles tome 

 xlv. ann. 1829. Nycticea cynocephala L. C. M'Murtrie's translation of Cuvier's 

 Regne Animale vol. i. appendix. Molossus cynocepbalus and fuliginosus Cooper, 

 Ann. Lyceum New York, vol. iv. p. 65. 



Dentition. Upper jaw, incisors 1-1, simple, distant, convergent at the points so 

 as almost to meet. Canines 1-1 curved outwards, so deeply grooved in front ai 

 to appear almost double. False molars 2-2 the anterior one very small, the 

 posterior one with a sharp basal cusp. Molars 3-3, the first and second with 

 seven cusps 3 exterior, 2 intermediate and 2 interior, the third with five cusps 2 

 exterior, 2 intermediate and 1 interior. Lower jaw incisors 6, approximate, 

 emarginate. Canines 1-1, simple slightly curved inwardly. False molars 2-2, 

 the anterior one smaller. Molars 33 each with 2 exterior and 3 interior cusps. 



Hair fine and soft, cinereous tipped with brownish dusky, beneath rather paler. 

 Face naked, nose turned up, broad, blunt, channeled on the top, crenately serrate 

 on the front margin, upper lip very large, tumid, pendulous, with eight perpen- 

 dicular grooves. Ears projected forwards, broad, rounded, not united on the 

 top of the head, but running down the sides of the forehead to the root of the 

 nose, outwardly produced downwards and forwards to the corner of the mouth, 

 and very obtusely emarginate about one third of the distance from the top, the 

 upper part has inwardly from eight to ten small rather pointed tubercles near its 

 margin. The ears have likewise an internal fold and a small thick round fleshy 

 lobe opposite the orillon and concealing it from view. Orillon small oblong 

 and rectangular; the lower part of the outer edge of the ear is double as in 

 many other animals, for instance in cats and dogs. Membrane rather thicker 

 than common, naked, dusky, the interfemoral above more or less thinly covered 

 with short and soft hair, including the tail, one third part of which projects be- 

 yond it. The inner and outer toes wooly outside, the outer toe somewhat op- 

 posable to the others. 



Length 2.5 in. Tail 1 25. Extent 10.2. Head .95. Ears .4. Orillon .1. 



Inhabits Georgia and South Carolina. 



