32 
U. S. P. R. R. EXP. AND SURVEYS-ZOOLOGY-GENERAL REPORT. 
cies was written before the animal was skinned ; that it was overstuffed in the preparation, and 
that in this state the figure was made, as well as the comparison with S. cooperi. 
St. Hilaire speaks of the ears as small and concealed hy the fur, and Bachman calls them 
large ; hut these terms are purely relative, and although the ears are really larger than usual 
in most American shrews, yet they are greatly surpassed hy many European ones. The figure, 
in fact, exhibits the ears distinctly ; as much so as is required when the fur is in its natural 
position and not pushed forward, as in Bachman’s figure. 
List of specimens. 
Catalogue 
Corresponding 
Locality. 
Whence obtained. 
Nature of specimen. 
number. 
No. of skull. 
637 
1788 
Washington, D. C.. 
Dr. C. Girard__,_ 
Skin from alcohol. 
Section B, with four upper premolars, Teeth 30. 
Similar to section A in ears and tail; feet small and weak; dental formula, ~ -{- ~ -f- 30. 
Ho diastema between the lateral upper tooth and first molar; upper anterior incisor hidentate ; 
lower anterior incisor extending hack nearly to the posterior end of the second lateral tooth. 
SOREX HOYI, Baird. 
Sp. Ch. —Very small and slender. Ears prominent, but not quite as long as the adjacent fur, which measures scarcely one 
and a half lines. Feet very small; the posterior, five-eighths the length of the skull. Tail about as long as the body, exclusive 
of the head. Only four lateral upper teeth ; all the teeth large and dark colored. Anterior upper incisor with very prominent 
serrated lobe on the inner face, in contact with its opposite. 
Color above, olive chestnut brown, with a little hoariness; beneath, dull rusty white. Tail bicolor. Length, about 1} 
inch. Tail, 1|. 
Description of a specimen in alcohol, 1688.—In general form this shrew is very slender ; the 
snout attenuated, hut rather broad above. The muffle is rather broad, naked, and hilohed ; it 
projects far beyond the lower lip. The eye is small, but distinctly visible, about midway 
between the occiput and the muzzle ; considerably nearer the anterior base of the external ear 
than to the tip of the nose. The ear is large ; the antitragus and helix valvular, and margined 
with hairs ; the concha rather short, hairy on the margin and edge, and directed backwards. 
The tail is as long as the body, exclusive of the head ; it is rather thick, slightly contracted 
at the base, tapering gently from the middle to a rather blunt tip, and with very few and 
short hairs ; in fact, the terminal portion is quite naked. 
The feet are very small, the hinder ones disproportionately so ; the heel is hairy, except 
along the middle line; the rest of the soles is naked, with six large tubercles among the smaller 
ones ; those on opposite edges of the metatarsus are opposite each other. 
The colors are the same as those of the dry skin. 
Description of a dried skin, 632.—General form that of S. cooperi. Muzzle perhaps less 
elongated. Fur short, scarcely one and a half lines long. Ears of moderate size, though not 
quite as long as the adjacent fur. The feet are small, though rather broad ; the former con¬ 
tained not quite one and two-third times in the latter, which is about five-eighths as long as the 
