MICHIGAN ACADEMY OF SCIENCE. 
201 
LIST OF SPECIES. 
1. Odocoileus americanus borealis Muller. Northern White-tailed 
Deer. — Deer have become quite rare in the region of Osceola County, 
but recently, owing to the closed season for several years, they seem to 
be slowly increasing. A few are killed each year by local hunters. 
2. Sciurus niger rufiventor (Geoffrey). Western Fox Squirrel. — Fox 
squirrels are quite plentiful wherever any hardwood timber remains. This 
species seems to be replacing the gray squirrel, which has been nearly 
exterminated within the past few years. 
MEASUREMENTS. 
Museum Number 
Sex 
Length 
Tail 
Foot 
42186 
female 
525 mm 
217 
70 
42187 
a 
565 
252 
75 
3. Sciurus carolinensis leucotis (Gapper). Northern Gray or Black 
Squirrel. — Within the last fifteen years, squirrels of this species were so 
plentiful in Osceola County that it w r as not unusual for a hunter to kill 
from ten to twenty in a single day. Among these the black phase was 
predominant. Today, they are among the rarest of our mammals and 
only to be found in the largest tracts of hardwood forests. The black 
phase still predominates. 
4. Sciurus hudsonicus loquax (Bangs). Red Squirrel, Chickaree. — 
Abundant and of general distribution. 
MEASUREMENTS. 
Museum Number Sex Length Tail Foot 
42168 female 327 mm 135 51 
5. Tamias striatus lysteri (Richardson). Lyster’s Striped Chipmunk. — 
Abundant and of general distribution. 
MEASUREMENTS. 
Museum Number 
Sex 
Length 
Tail 
Foot 
42171 
female 
235 mm 
86 
35 
42172 
a 
234 
88 
35 
6. Citellus tridecemlineatus (Mitchell). Thirteen-Striped Spermophile. 
— This species, unknown in this region up to a few years ago, has become 
very plentiful in the county. It is found in considerable numbers thruout 
the waste pine and hardwood lands, but its economic importance can not be 
appreciable for its presence in the cultivated regions is hardly noticeable. 
Seeds constitute the main diet ; as many as seventy-seven seeds resembling 
those of the sunflower and measuring approximately 3X5 mm were taken 
from the cheek pouches of one specimen. Many places were found where 
foxes and badgers had dug them out of their burrows, and domestic cats 
kill numbers of them in the vicinity of human habitations. 
MEASUREMENTS. 
Museum Number 
Sex 
Length 
Tail 
Foot 
42169 
male 
244 mm 
78 
35 
42170 
238 
78 
35 
