340 Rev. Canon Norman's Revision 



Fam. 9. Otinidae. 

 Genus Otina, Gray. 



260. Otina otis, Turton. 



Var. Candida, Jeffreys. 



The variety from Sark {Dr. Lukis, Mus. Norm.). 



Suborder III. IIYGROPHILA. 



Fam. 10. Limnseidse. 



Genus 1. AxcYLUS, Geoflfroy. 



261. Ancylus fluviatilis, Miill. 



Var. capuloides (Jan), Porro. 

 Var. gibbosusj Bourg. 



262. Ancylus lacustris (Linn.). 



Genus 2. Limn^a, Lamarck. 



263. Limncea stagnalis (Linn.). 



264. Limnaa jjalustris (Miill.). 



265. Limnoia truncatula (Miill.). 



266. Limncea glabra (Miill.). 



267. Limnwa auricularia (Linn.). 



268. Limnoia peregra (Miill.). 



Genus 3. Amphipeplea, Nilsson. 



269. Amphipeplea glutinosa (Miill.). 



This has been added to the L-ish fauna by ^Ir. C. Asliford, 

 who has found it in the Newry Canal, near Knoebridge, Co. 

 Down, and the River Brusna, King's County (Journ. Conch. 

 ii. p. 6). 



270. AmpMpep)ha involuta, Thompson. 



Genus 4. PLAXOrvBis, Guettard. 



271. Planorbis corncus (Linn.). 



272. Planorbis contortus (Linn.). 



273. Planorbis carinafns, Miill. 



