Limnaea palustris, v minor, Taylor. 

 Limnsea palustris, v elongata, Moq, 

 Limnsea palustris, v conica, Jeff. 

 Limnaea palustris, v tincta, Jeff. 

 Limnaea palustris, v lacunosa, Zgl. 

 Limnaea palustris, v fasciata, Nelson. 

 Limnaea palustris, v roseolabiata, y^jf^ 

 Limnaea palustris, v glubosa, Taylor. 

 Limnaea palustris, v obesa, Taylor 

 Limnaea palustris, v augulata, Cockerel. 

 Limnaea palustris, v albida. Nelson. 

 Limnaea palustris, m decollatum, Jeff. 

 Limnaea palustris, m carinatum, Taylor, 



LiMNTEA TRUNCATULA, Milll. 



Limnaea truncatula, v major, Moq. 

 Limnaea truncatula, v minor, Moq. 

 Limnaea truncatula, v elegans, Jeff. 

 Limnaea truncatula, v ventricosa, Moq. 

 Limnaea truncatula, v microstoma, Dronet. 

 Limnaea truncatula, v albida, Jeff. 

 Limnaea truncatula, v elegans, Jeff. 

 Limnaea truncatula, m scalariforme, Jeff. 



LlMNiEA GLABRA, Milll. 



Limnaea glabra, v major, G assies. 



Limnaea glabra, v elongata, Jeff. 



Limnaea glabra, m decollatum, Nelson. 

 Genus IV. — Ancylus, Geoffrey. 

 Ancylus fluviatilis, Milll. 



Ancylus fluviatilis, v capuloides, Jan. 



Ancylus fluviatilis, v gibbosa, Bourg. 



Ancylus fluviatilis, v costata, Fer. 



Ancylus fluviatilis, v albida, Jeff. 

 Ancylus lacustris, L. 



Ancylus lacustris, v compressa, Jeff. 



Ancylus lacustris, v moquiniana, Boiirg. 



Ancylus lacustris, v albida, Jeff. 



