Table 1 . Maximum diameter (in mm: mean ± SD) of live Oreohelix elrodi and Discus brunsoni 

 in three talus sites on 1 and 10 July 1997, Mission Mountains, Montana. Sample sizes are in 

 parentheses. 



Site 1 Site 2 Site 3 



D. brunsoni 



mean 9.5 ±1.4 (8) 



range 6.7 - 10.5 



14 



