84 ZOOLOGY. 



basal cusp; under incisors minutely serrate. Cheek with excrescence continuous 

 with inner border of ear. Skull rather large; cranium inflated, with protuberaut 

 frontal portion. Rostrum depressed ; no occipital crest. Ear very large, with exterior 

 holder extended as a semicircular flap as tar as the tragus, winch is well developed, 

 halt as high as car, with well marked basal lobe. Differs from Plecotus, its Euro- 

 [iean ally, in absence of a tongue-shaped appendage at base of inner border of ear. 



CORYNORHINUS MAOROTIS, (LeO.) Allen. 



Big-enrcd Bat. 



Plecotus man-otis, LeConte, McMurtrie's Cuv., app., 1S31,431. 



Synotus macrotis, Allen, Monog., 63. 



Plecotus lecontii and P. toumsendii, Cooper, Ann. Lye. N. Y., 1837, iv, 72, 73. 



Synotus lecontii and S. townsendii, Wagner, Sehreber's Siiug., 1855, v, 720. 



Synotus townsendii, Allen, Monog., C5. 



Corynorhinus macrotis, Allen, Proc. Phila. Acad., 18G5, 173. 



Chars. — Hair long, flue, and soft, extending moderately on tbe face; at base of 

 ear, running up the inner border of ear as a delicate line, and sparsely out on back of 

 foot; femoral membrane and base of thumb naked; nostrils almost lateral ; lips thin, 

 compressed. Head flat, not very broad ; facial profile rising to level of nostrils. Fur 

 above dark at base — almost blackish, at tips more brownish ; below similar, but with 

 grayish tips running to whitish toward the pubis. Total length, 3J-3^ ; expanse, 

 9-11 ; tail, Ijj ; forearm, 1§; shin, - ; longest finger, 2J-2§; ear, 1 or more high. 



LTab. — As restricted by Or. Allen, this species is only known to occupy the 

 Southern States, from the Carolinas to Mississippi, with a probability, as noted, of its 

 occurrence northward to Meadville, Pa. (see. Monog., 04, in text). But if, as we have 

 no doubt, the S. townsendii of the author mentioned is the same species, the range 

 includes the Upper Missouri region and the Great Basin, and doubtless extends across 

 intermediate ground, as well as into New Mexico and Arizona. 



Genus ANTROZOUS, Allen. 



Antrozous, Allen, Proc. Phila. Acad., 1802, 247; Monog., 00. 



CHAR. — Teeth: I., -f-^ ; C, — ; M., — = —, = 28; thus unique in possession 



of only 4 under incisors (as in the family Phyllostomatidw). Upper incisors large, 

 pointed, with median diastema; lower incisors trilobate, the middle ones in advance 

 of the lateral pair; no small upper premolar; lower canine with strong salient acute 

 basal cusp. Skull long, with greatly declining profile, but little or no frontal depres- 

 sion, crested behind. Snout tumid, blunt. Nostrils apical, their outer borders united 

 above by a transverse line; eves large; ears longer than head, separate. One known 

 species. 



