FrEB., 1912. MAMMALS OF ILLINOIS AND WISCONSIN — Cory. 459 
length of time, it turns head downward and hangs by the hooked 
nails of its hind feet. Its food, so far as known, consists entirely of 
insects. 
Specimens examined from Illinois, Wisconsin and adjoining states: 
Illinois — Rosiclaire, Hardin Co., 7; Golconda, Pope Co., 3= 10. 
Indiana — Wyandotte, 14. 
Wisconsin — Beaver Dam, Dodge Co., 2; (M. P. M.) Burnett Co., 1; 
Fountain City, Buffalo Co., 25; Osceola, Polk Co., 1; Maiden Rock, 
Pierce Co., 11; Milwaukee, 2; (O. C.) Iron Co., 1; Milwaukee 2; 
Delafield, Waukesha Co., 1= 46. 
Myotis grisescens Howe t. 
Gray Bat. 
Myotis grisescens Howe ., Proc. Biol. Soc. Wash., XXII, 1909, p. 46. Haun, 
Ann. Rept. Dept. Geol..& Nat. Resources Ind., 1908 (1909), p. 625 (Indiana). 
HoweE.t, Proc. Biol. Soc. Wash., XXII, 1909, p. 67 (Tennessee, Missouri, 
Indiana). 
Myotis velifer MLLER, N. Amer. Fauna, No. 13, 1897, p. 56 (in part specimens 
from Marble Cave, Missouri). Haun, Proc. U. S. Nat. Mus., XXXV, 1908 
(1909), p. 580 (Monroe Co., Indiana). 
Type locality — Nickajack Cave, near Shellmound, Marion Co., Ten- 
nessee. 
Distribution — Limits of range unknown. It has been taken in Ten- 
nessee, Indiana, Illinois and Missouri, and will probably be found 
ultimately'in many of our Southern states. 
Description — General color dull brown to mouse-gray, somewhat 
paler and more grayish below, flanks and lower 
portion of abdomen showing a slight buffy tinge in 
some specimens; whole number of teeth in upper 
jaw 18; tragus long and rather slender, similar to 
that of velifer. 
Measurements — Total length, about 4.12 in. (97 to 
rro mm.); tail, 1.65 in. (42 mm.); foot, .50 in. (10.5 
mm.); forearm, 1.60 in. (40 mm.) or more; extent (spread of wings), 
about 11 in. (280 mm.). 
Remarks — Differs from M. velifer in averaging darker in color and 
having the wing membrane attached to the feet near the ankle 
joint and not at the base of the toes as in velifer. 
Very little is known concerning the range of this species, but it has 
so far been taken in Illinois, Tennessee, Missouri and Indiana. Mr. 
Howell described it as a new form in 1909, and specimens which have 
