Fes., 1912. MAMMALS ‘OF ILLINOIS AND WISCONSIN — Cory. 419 
Type locality — Racine, Wisconsin. 
Distribution — Northern United States and southern Canada south to 
Michigan, southern Wisconsin and New York, and considerably 
further south in the Allegheny Mountains; its western range ex- 
tends nearly across the continent but its exact limits are unknown. 
Description — General appearance somewhat resembling S. personatus, 
but tail decidedly shorter. Upper parts approaching sepia brown; 
under parts ashy gray or pale brownish gray, often washed with 
buff on throat and breast; upper surface of tail dark brown, under 
surface pale. Best distinguished from any of our species by dental 
characters. There are apparently only three unicuspid teeth 
present on each side of upper jaw; the third is wedged in between 
the 2d and 4th and is so exceedingly small that it requires the aid 
of a good lens to distinguish it at all and even then it is rarely 
visible from the outside. The canine and second and third upper 
incisors have a distinct pigmented secondary cusp near base on 
the inner sides. 
Measurements — Total length, about 3.20 in. (81 mm.); tail vertebre, 
1.25 in. (31.8 mm.); hind foot, .42 in. (10.5 mm.). 
Hoy’s Shrew was described by the late Prof. Baird, in 1857, from a 
specimen taken at. Racine, Wisconsin. Two specimens, including the 
type, were recorded by him from that locality. 
A mounted Shrew preserved in the Milwaukee Public Museum, 
which, taken by Thure Kumlien in Jefferson County, in 1879, was for 
many years supposed to be this species, but upon examination it proved 
to be S. personatus; therefore, until 1910 Baird’s specimens were the only 
ones known to have been taken within our limits. In August, 1910, 
Mr. W. H. Osgood secured two others at.Lac Vieux Desert, Vilas Co., 
Wisconsin. He informs me they were not taken in traps but had 
fallen into a partly excavated well some three or four feet deep, in which 
he found them. It is probable that the species is by no means rare, 
but the difficulty in trapping it makes it appear so. 
Regarding the habits of this diminutive species we know very 
little. Like many others of its kind, its life history is one of Nature’s 
books, which has rarely been opened, and which remains for future 
investigators to read. 
Specimens examined from Wisconsin: 
Wisconsin — Lac Vieux Desert, Vilas Co., 2. 
