30 THE NAUTILUS. 



The following is a list of the species and the lakes in which 

 they were found : 



Lampsilis cariosa Say. Cayuga Lake. 



Lampsilis iris Lea. Cayuga Lake. 



Lampsilis luteola Lam. Cayuga, Little York, Canandaigua, 

 Chautauqua Lakes, Genesee River. 



Lampsilis luteola var. rosacea DeKay. Cayuga Lake. 



Lampsilis radiata Gmelin. Cayuga, Cayuta, Little York 

 Lakes. 



Obovaria ellipsis Lea. Niagara River (From Dr. Sager). 



Ptychobranchus phaseolus Hild. Chautauqua Lake. 



Strophitus edentulus Say. Cayuga, Canandaigua, Green, Chau- 

 tauqua Lakes. 



Anodonta cataracta Say. Cayuga, Cayuta, Little York Lakes. 



Anodonta fiuviatilis Lea. Cayuga, Cayuta, Little York Lakes. 



Anodonta grandis Say. Cayuga, Cayuta. Chautauqua Lakes. 



Anodonta grandis Say var. footiana Lea. Canandaigua, Hem- 

 lock, Chautauqua Lakes. 



Anodonta grandis Say var. decora Lea. Chautauqua Lake. 



Anodonta fragilis Lam. Cayuga Lake. 



Anodonta implicata Say. Cayuga Lake. 



Anodontoides ferussacianus var. buchanensis Lea. (Anodonta 

 subcylindracea Lea). Cayuga, Little York Lakes. 



Symphynota costata Raf. (Alasmodonta rugosa Barnes). Ca- 

 yuga Lake. 



Alasmidonta marginata Say. (Alasmidonta truncata Wright). 

 Tioughnioga River. 



Unio complanatus Sol. Cayuga, Canandaigua, Little York 

 Lakes. 



Unio gibbosus Barnes. Chautauqua Lake. 



Sphaerium partumeium Say. Fall Creek, Ithaca. 



Sphaerium simile Say. Cayuga, Cayuta, Hemlock, Conesus, 

 Chautauqua, Silver Lakes. 



Sphaerium striatinum Lam. var. Chautauqua Lake. 



Sphaeriwm transversum Say. Fair Grounds, Ithaca. 



Pisidiwn compression Prime. Cayuga Lake. 



Pisidium virginicum Bourg. Hemlock Lake. 



