310 
Census of Lincolnshire Land and Freshwater Mollusca. 
I 2N 2S 3NE 3SW 4 5E 5W OF Ow 7N 7S 8N 85 9 
Balea perversa (L.). 3SW 4 Essen 
Azeca tridens (Pult.). 8s 
Cochlicopa lubrica (Mull.). 2N 2S 3NE 3SW 4 6= 7N 7S 8N 8S 9 
Cecilioides acicula (Muill.). I 2N 2S 3SW ss SE 6E 8s 
Succinea putris (L.). I 2S 3NE 3SW 4 5E 5W 6w 7N 8s 9 
Succinea elegans Risso. 2S 3SW 4 Sw 8n 8S 9 
Carychium minimum Mull. 2N 2S 3SW 5W 7N 7S 8N 8S 
Pomatias elegans (Mull.). 38SW 6E 8s 
Limnza stagnalis (L.). I 2s 3SW 4 5w 6E 7s 8s 9 
Limneza palustris (Mull/.). I 3SW 3W 6= 7s ‘8S 9 
Limnza truncatula (Mull.). I 2N 25 3SW 4 5E 8n 8s 9 
Limnea peregra (Mull.). I 2N 2S 3NE 3SW 4 5E 5W OE Ow 7N 7S 8N 85 9 
Limnea auricularia (L.). I 38W 4 6E 7N 7S 8s 9 
Limnea glabra (Mull.). 
Amphipeplea glutinosa (Mull.). 9 
Physa fontinalis (L.). I 2s BSW 4 6E OW 8s 9 
Aplexa hypnorum (L.). I 3SW 5w 8s 9 
Planorbis corneus (L.). I 2s 3SwW 5W 6E 8s 9 
Planorbis albus (Mutll.). I 2s 3SW 4 5E OE 7N 78 8N 8S 9 
Planorbis crista (L.). 2S 3SW SE 5W 8s 
Planorbis carinatus Mull. I 2S 3SW 4 5w 8s 9 
Planorbis umbilicatus Mull. 2s 3SW 4 5W 6E 8N 88S 9 
Planorbis vortex (L.). I 25 38W 4 5E 6W 8N 8s 9 
Planorbis spirorbis (L.). 2s 38wWw 4 6w 7N 7S 8N 8S 9 
Planorbis contortus (L.). I 2S 3SW 6E OW 8n 8S 9 
Planorbis fontanus (Lightfoot). 2S 3SW 4 5E 65 8s 9 
Sezgmentina nitida (Mull.). sw 9 
Ancylus fluviatilis Mull. 8s 
Acroloxus lacustris (L.). 2S 3SwWw 4 6E 9 
Viviparus contectus (Millet). 1 2s 3SwW 6E 6W 9 
Viviparus viviparus (L.). 5w ow 7s 
Bythinia tentaculata (L.). I 2N 2S 3SW 4 5w 6E 6W 7N 8N 8S 9 
Bythinia leachii (Shepp.). I 2s 3SW 5W 6E 9 
Valvata piscinalis (Muil.). I 2s 3SW 6E 6w 7N 7S 8N 8S 9 
Valvata cristata Mull. 2S 3SW 6E 8s 9 
Neritina fluviatilis (L.). 2S 3SW 6E 6W 7s 
Unio tumidus Phil. I 2s 5W OE 7s 8s 
Unio pictorum (L.). I 2s 38W 5w 7s 8N 8s 
Anodonta cygnea (L.). 2S 3SW 5w OE 6W 7s 8N 8S 9 
Anodonta anatina (L.). 3SW 5W 6E 7s 
Spherium rivicola (Leach). 2S 3SW 5w 6w 7S 
Spherium corneum (L.). I 2s 3SW 4 5W 6E 7N 7S 8N 85 9 
Spherium lacustre (Mull.). I 2s 38SW 4 6w 7s 8s 9 
Pisidium amnicum (Muill.). 38W 4 6E OW 8s 9 
Pisidium fontinale (Drap.). 
Pisidium se paarenat felinale: 7a ae Wiee ae = LOD a2 
Pisidium conicum Baud. 
Pisidium henslowanum (Shepp.). 2N 2S 3SW 6E 7N 7S 
Pisidium pulchellum Jenyns. 
Pisidium obtusale Pfezff. 4 , IN 7S 8s 9 
Pisidium pusillum (Gmelin). 2N 2S 3SW 3sO5E 6E 6w 7N 7S 8N 8S 9 
Pisidium nitidum Jen. 3SW 4 7s 8s 9 
Pisidium milium Held. 5E 8s 9 
Dreissena polymorpha (Pail.). 2S 3SwW 6w 7s 
Paytia myosotis (Drap.). 9 
Paludestrina confusa (F7.). 9 
Paludestrina jenkinsi Sm. 3NE 4 5w 9 
Paludestrina ventrosa (Mont.). 3NE 9 
Paludestrina stagnalis (Bast.). 9 
Io 
10 
10 
10 
