198 PROCEEDINGS OF THE NATIONAL MUSEUM vol. no 



Description: Adult coloration: Mass effect of upperparts in 

 darkest individuals between Natal Brown and Bone Brown, with 

 little distinction between bases and tips of hairs; mass effect in palest 

 individuals between Vandyke Brown and Verona Brown, with hair 

 bases considerably paler than the tips, about Benzo Brown. Hair 

 of underparts Fuscous at base; darkest individuals have hair tips of 

 throat and breast between Snuff Brown and Bister, those of the 

 belly Light Pinkish Cinnamon; palest individuals have hair tips of 

 entire underparts Light Pinkish Cinnamon. Immature coloration: 

 Similar to the darkest adults or slightly darker. 



Size averages medium for subgenus; forearm averages relatively 

 short. Construction of skull heavy; rostrum relatively long, inflated, 

 and not depressed; anterior nares, viewed from above, usually rounded 

 in posterior outline. Canine strong; first upper incisor frequently 

 with trace of secondary cusp ; P* usually with anterointernal cingular 

 cusp. 



Measurements: See tables 12, 18. 



Comparisons: P. t. townsendii is the darkest colored and shortest 

 winged population of the species P. townsendii. Compared with 

 P. t. pallescens, into which it grades to the east and south, P. t. town- 

 sendii is darker, averages slightly larger, and has a more robust skull, 

 heavier rostrum, and anterior nares that average relatively larger 

 and more rounded in posterior outline. 



Remarks: The type locality of this form is not "Columbia River, 

 Oregon" as has been assumed by many authors (e.g., Miller, 1897, 

 p. 53; G. M. Allen, 1916, p. 344; Anderson, 1946, p. 33; Miller and 

 Kellogg, 1955, p. 110). Bailey (1936, p. 387) and Dalquest (1948, 

 p. 163) were correct in naming "Fort Vancouver, Washington" as 

 the type locality. 



Cooper's description (1837, p. 73) of Plecotus townsendii was based 

 on three specimens which he stated had been obtained by J. K. Town- 

 send on the Columbia River. In the appendix to the narrative of his 

 journey to the Columbia, Townsend (1839, pp. 324, 325) mentioned 

 the species as follows: 



[Plecotus Townsendii is the] So-capual of the Chinook Indians .... Inhabits 

 the Columbia river district, rather common. Frequents the store houses attached 

 to the forts, seldom emerging from them even at night. This, and a species of 

 Vespertilio, {V. subulatus), which is even more numerous, are protected by the 

 gentlemen of the Hudson's Bay Company, for their services in destroying the 

 dermestes which abound in their fur establishments. — Towns. 



In these sentences from Townsend's narrative there are many 

 clues to the whereabouts of the type locality of P. townsendii. First 

 is the fact that the bat "Inhabits the Columbia river district." Next, 

 "Frequents the store houses attached to the forts." According to 



