Mammals of Northwestern South Dakota

iameter, although in the first 30 feet or so the ceiling varies from 10 to 15 feet in height. A thorough search of this cave on June 18, 1961, revealed one bat, a male Plecotus, which was shot from the ceiling about 15 feet from the entrance. No bats were found when the cave was visited on May 16 and again on June 4, 1968. Visher (1914:92) reported that several Plecotus were found there in early September, 1912. Probably Ludlow Cave, along with the several abandoned coal mines in the county, serves as a hibernaculum for some species of bats.

Order Lagomorpha

~Lepus townsendii campanius~ Hollister, 1915

White-tailed Jack Rabbit

Specimens examined (15).--NW 1/4 sec. 23, R. 1 E, T. 23 N, 1; sec. 24, R. 1 E, T. 22 N, 1; 2 mi. N, 2 mi. E Ladner, 1; 4 mi. S, 7 mi. W Ladner, 2; 10 mi. S Ladner, 1; 6 mi. N, 2-1/2 mi. W Camp Crook, 1; 2 mi. N Buffalo, 1; sec. 30, R. 3 E, T. 19 N, 1; SW 1/4 sec. 26, R. 2 E, T. 19 N, 1; 10 mi. S, 5 mi. W Reva, 3; 12 mi. S, 5 mi. W R