1936] 



MAMMALS OF OEEGON 



387 



Measurements. Adult male from Vida: Spread of wings, about 300 mm. 

 Total length, 100; tail, 47; foot, 10; forearm, 41. Another from McKenzie 

 Bridge: 108,49, 12,44. 



Distribution and habitat. This darkest form of the long-eared 

 bats inhabits the humid Transition Zone of the northwest coast 

 region from southern British Columbia to northwestern California, 

 including most of Oregon west of the Cascades (fig. 101). Speci- 

 mens, when obtained, from the Upper Rogue River Valley will 

 probably prove to be intermedium instead of typical townsendii. 



General habits. These long-eared bats are generally cave dwellers, 

 and their erratic distribution is thus evidently influenced by the 

 presence of caves, buildings, or other suitable cover. The first 

 record of the form was made by J. K. Townsend in 1835, while at 

 Fort Vancouver, on the 

 Columbia River across 

 from Portland. He said 

 they were rather common 

 in the Columbia River 

 district, frequenting the 

 storehouses attached to the 

 post and seldom emerging 

 from them even at night. 

 They were protected by 

 the men of the Hud- 

 son's Bay Co. for their 

 services in destroying the 

 dermestes that abounded 

 in their fur establishments 

 (1839, p. 324). 



A specimen in the Jew- 

 ett collection taken in 

 Portland, September 5, 1928, is an adult male. It is the nearest to an 

 actual topotype seen and is of the very dusky form of the coast region. 



In 1914 a bat cave was reported at the eastern edge of Portland 

 and only a few miles from where Townsend secured the specimens 

 that later formed the basis for the description of the species. There 

 were said to be hundreds of these long-eared bats in the cave at all 

 times of the year, but when Jewett visited it a little later hoping to 

 secure a series of actual topotypes of the species, he found that van- 

 dals had been there before him and set fire to the bat guano and 

 smoked out the whole bat colony. At a still later visit the bats had 

 not returned, and no recent reports from this cave have been received. 

 In the university collection at Eugene is a specimen captured in the 

 Administration Building at the university. 



At Vida, on the McKenzie River east of Eugene, one of these bats 

 was brought to the writer from a house where it was captured by 

 someone a couple of miles down the river. At McKenzie Bridge, 

 farther up the river, two of these bats were found hanging during 

 the day in an empty cabin in the woods and another in a closet at 

 the school house. Two others were shot in the evening near there 

 as they circled overhead at the edge of the woods, but it is a strange 

 fact that they are rarely collected by shooting except close to some 

 cave or building where they live. 



FIGDBB 101. Range of three long-eared bats in Ore- 

 gon : 1, Corynorhinus rafineaquii townsendii; 2. O. 

 r. pailescens: 3, O. r. intermedius. Type locality 

 circled. 



