======================================================================= | Number | | |Per cent| | LOCALITY | of | Total | Length | of | Length of | | specimens | length | of tail | body- | hind foot | | averaged | | | length | | ----------+------------+-----------+-----------+--------+-------------+ | 8 ad. [M] | 415 | 146 | 54% | 46.0 | Massa- | | (390-432) | (127-159) | | (41.0-48.0) | chusetts +------------+-----------+-----------+--------+-------------+ | 4 ad. [F] | 311 | 104 | 50% | 33.9 | | | (298-321) | (95-114) | | (31.5-37.0) | ----------+------------+-----------+-----------+--------+-------------+ | 10 ad. [M] | 411 | 141 | 52% | 47.1 | Liberty | | (379-438) | (124-155) | | (43.0-51.5) | Hill, +------------+-----------+-----------+--------+-------------+ Conn. | 6 ad. and | 318 | 105 | 49% | 33.0 | | sad. [F] | (303-338) | (80-123) | | (31.7-36.0) | ----------+------------+-----------+-----------+--------+-------------+ | 10 ad. [M] | 407 | 130 | 47% | 46.0 | Beaver | | (372-431) | (113-143) | | (42.0-50.0) | Dam, +------------+-----------+-----------+--------+-------------+ Wisc. | 4 ad. [F] | 326 | 99 | 43% | 35.6 | | | (303-338) | (86-108) | | (34.6-38.0) | ----------+------------+-----------+-----------+--------+-------------+ | 10 ad. [M] | 371 | 130 | 54% | 45.0 | Washtenaw | | (350-405) | (115-140) | | (40.0-50.0) | Co., +------------+-----------+-----------+--------+-------------+ Mich. | 10 ad. [F] | 306 | 97 | 46% | 34.0 | | | (290-335) | (90-120) | | (30.0-40.0) | ----------+------------+-----------+-----------+--------+-------------+ The length of the hind foot averages more than the basal length in males whereas the reverse is true in females. The tail, relative to the length of the body, is longer in males than in females. The average differences in external measurements of the two sexes in Massachusetts, are: total length, 104; length of tail, 42; length of hind foot, 12.1. In Michigan, where the males are smaller, corresponding differences are only, 65, 33, and 11. Weight of 19 adult males from New York (Hamilton, 1933:294), 225 (196-267) grams and in 13 adult females, 102 (72-126) grams. Weights of 2 adults from Michigan are: [M] 258; [F] 101 grams.