LASIURUS. DASYPTERUS. 595 



561. cinereus (Vespertilio), Beauvois, Cat. Peak's Mus. Phil., 1796. 



P- 15- 

 pruinosus Say, Long's Exped. Rocky Mts., i, 1823, p. 167. (Foot- 



note.) 



cinereus (Lasiurus}, Elliot, Syn. N. Am. Mamm., 1901, p. 413. 

 HOARY BAT. 



Type locality. Philadelphia, Pennsylvania. 



Geogr. Distr. North America from the Atlantic to the Pacific, at 

 different seasons, south through Mexico, Central and South America 

 to Chili. 



Genl. Char. Size large; ears with edges black; foot half as long 

 as tibia. 



Color. Above umber brown, hairs tipped with silvery white; 

 throat, head, and under side of membranes yellowish brown; band of 

 umber brown below throat : ventral surface whitish. 



Measurements. Total length, 130-140; tail vertebrae, 52-58; 

 tibia, 23-24; foot, 9-10; forearm, 46-55; thumb, 10-10.6; longest 

 finger, 101-110; ear from meatus, 17-18; width of ear, 15-17.7; 

 tragus, 9-9.5. Skull: occipito-nasal length, 17; Hensel, 9; zygo- 

 matic width, n; mastoid breadth, 10; palatal length, 7.5; inter- 

 orbital constriction, 4.5; length of mandible, 12; lower tooth row 

 exclusive of incisor, 6. 



118. Da sy pt ems. 



Dasypterus Peters, Monatsb. K. Preuss. Akad. Wiss. Berlin, 1870, 



(1871), p. 912. Type Lasiurus intermedius Allen. 

 Upper incisor in contact with canine; skull short, very broad 

 and deep; ear tapering at tip, naked on half of dorsal surface; inter- 

 femoral membrane furred on half of dorsal surface ; mammas four. 



KEY TO THE SPECIES AND SUBSPECIES. 



FA.\rC* 



A. Posterior third of interfemoral naked ....... D. intermedius 595 



B. Posterior half of interfemoral naked. 



a. Cheeks not black ...................... D. ega xanthinus 597 



b. Cheeks black ........................ D. ega panamensis 597 



562. intermedius (Lasiurus}, H. Allen, Proc. Acad. Nat. Scien. Phil., 



1862, p. 246. Elliot, Syn. N. Am. Mamm., 1901, p. 414. 

 INTERMEDIATE BAT. 



Type locality. Matamoros, State of Tamaulipas, Mexico. 



Geogr. Distr. State of Tamaulipas, Mexico, north to Gulf States 

 of the United States. 



