40 [Senate 



15 Helix fallax, 6 sp. Vicinity of Mohawk. 



16 Helix albolabris, 2 sp. Vicinity of Motawk. 



17 Physa heterostkopha, 6 sp. Remains of the old canal, Mohawk. 

 18 



19 Helix palliata? 3 sp. Vicinity of Mohawk. 



2D LiMNEA EL0DE3? 6 sp. Ditch, vicinity of Mohawk. 



21 LiMNEA modicellus? 13 sp. Old canal near upper lock, Mohawk. 



22 LiMNEA ELODEs? 12 sp. Old canal near upper lock, Mohawk. 

 2S Cyclas occidentalis, 24 sp. Ditches on flats, Mohawk. 



24 Cyclas similis, 12 sp. Small pond, once the bed of W. Canada or. 



25 CycLAs ROSACEA? 20 sp. Ditch on flats of Mohawk. 

 2B Physa , 7 sp. Ditch on flats, Mohawk. 



27 Cyclas erkans, 26 sp. Pool, Mohawk. 



28 Physa , 7 sp. Hill stream, Mohawk. 



29 LiMNEA ELODES? 8 sp. Found in a pool near Mohawk. 

 Z.0 Cyclas quercus, 10 sp. Outlet of Schuyler's lake. 



51 Planorbis megastoma, 10 sp. Old lock near Mohawk. 



52 Pisidium dubium, 18 sp. Mohawk river. 



53 SucciNEA cAMPESTRis, 8 sp. Vicinity of Mohawk. 



54 SucciNEA , 5 sp. Shore of Schuyler's lake, Otsego county. 



55 SucciNEA , 8 sp. Margin of ditches, Mohawk. 



S5 Paludina ponderosa, 5 sp. Erie canal. Introduced? 



37 Pisidium compressum? 18 sp. Mohawk river. 



58 Cyclas (rugosa). Mohawk river. 



59 Pisidium altile. Erie canal. Introduced? 



40 Pisidium adamsii, 21 sp. Ditches on flats, etc. Mohawk. 



41 Pisidium compressum? Ditches on flats, etc. Mohawk. 



42 Paludina Integra, 5 sp. Mohawk river. 



43 Planorbis bicarinatus, 13 sp. Vicinity of Mohawk. 



44 Physa , 2 species Mohawk river. 



45 Pisidium (variable). Cambridge meadows, Groton, &c. 



46 Amnicola porata. Massachusetts. For comparison. 



