APPENDIX 335 



oldroydi^ D. & B. 

 inflexa^ D. & B. 

 Parthenia quinquecincta^ Cpr. 

 Fcitula cronkhitei^ Newc. 



chirk ahuana^ var. aslimuni^ Dall 

 Pedipes liratus^ Binney 

 Periploma sulcata^ Dall 

 ' Pecten ivhiteavesi^ Dall 

 Physa sparsistriata^ Tryon 

 hardi 



traski^ Tryon 

 virgata^ Gld. 

 Pholadidea sagittata^ Stearns 

 Pisidium czquilateratus^ Prime 

 Phasianella cornpta, var., producta^ Cpr. 

 Planorhis horealis 



deflectus, Say 

 executus^ Say 

 oregonensis^ Lea 

 Polygyra sanborni 



devius^ var. hinominatus^ Tryon 

 blandly Hemp. 

 catus^ Hemp. 

 cognatus^ Hemp. 

 navadensis^ Stearns 

 Psephidia salmonea^ Cpr. 

 Pupa Columbiana^ Sterki 

 Rissoina exilis^ Tryon 



oldroydii^ Dall 

 Rochefortia tumida, Cpr. 

 Scissilabra dalli^ Bartsch 



