LASIURUS. DASYPTERUS, 595 
561. cinereus (Vespertilio), Beauvois, Cat. Peale’s Mus. Phil., 1796. 
D. DS, 
pruinosus Say, Long’s Exped. Rocky Mts., 1, 1823, p. 167. (Foot- 
note.) 
cinereus (Lasiurus), Elliot, Syn. N. Am. Mamm., rgot, p. 413. 
Hoary Bar. 
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 vertebra, 52-58; 
tibia, 23-24; foot, 9-10; forearm, 46-55; thumb, 1ro—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, 11; mastoid breadth, 10; palatal length, 7.5; inter- 
orbital constriction, 4.5; length of mandible, 12; lower tooth row 
exclusive of incisor, 6. 
118. Dasypterus. 
LS; CS; PS; MS = 30. 
3—3? ‘I—1’? *2—2? 3 
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; mamme four. 
KEY TO THE SPECIES AND SUBSPECIES. 
PAGE 
A. Posterior third of interfemoral naked....... D. intermedius 595 
B. Posterior half of interfemoral naked. 
BG OGGKO TOL WIN CKen. ila cha ey hese ek i D. ega xanthinus 597 
Dt GOGME DIBCME it waite mie deleker white ware D. ega panamensts 597 
562. intermedius (Lasiurus), H. Allen, Proc. Acad. Nat. Scien. Phil., 
1862, p. 246. Elliot, Syn. N. Am. Mamm., rgor, p. 424. 
INTERMEDIATE Bat. 
Type locality. Matamoros, State of Tamaulipas, Mexico, 
Geogr. Distr. State of Tamaulipas, Mexico, north to Gulf States 
of the United States. 
