66 MR. T. PETCH ON LAND AND FRESH-WATER MOLLUSCA OF NORFOLK. 
LiMNiEA stagnalis. Gaywood, North Euncton, Saddlebow 
St. Germans, North Wootton, Babingley. 
,, „ var. fragilis. Generally found with the type. 
,, ,, var. pict a. In a ditch near St. Germans. Older 
specimens lose their epidermis, and only show 
the banding when viewed from the inner side. 
„ palustris. Common in ditches to the south of Lynn. 
St. Germans, Babingley, North Wootton, Gaywood, 
Setch. Several specimens approach var. lacunosa. 
,, „ var. elongata. Lynn. 
„ „ var. minor. North Wootton. 
„ ,, var. varied ata. Ditch near the Ouse, Lynn. 
,, ,, var. roseolabiata. Saddlebow, Lynn. 
„ truncatuIjA. In marshy places, or on the banks of 
ditches, seldom in the Avater. GayAvood, 
North Wootton, Hardwick, St. Germans, Holt, 
Hunstanton. 
., glabra. In slialloAV ponds at Beffley and North Euncton. 
Ancylus fluviatilis. One specimen near the Waterworks, 
Lynn, probably brought doAvn by the Gaywood 
river. 
Velletia lacustris. On reeds, St. Germans. Judging from the 
number of shells brought down amongst the reeds, 
this species is common higher up the Ouse. 
Vi vir Alius contectus. On leaves of Nymphcea alba. Wormegay. 
Bythinia tentaculata. In ditches everyAvhere. 
„ Leachii. Common in ditches with the last named at 
North Wootton, GayAvood, Lynn, SaddleboAv, 
West Winch. 
„ ,, var. alba. South Lynn. 
Valvata piscinalis. Common in ditches and drains. Babingley, 
North Wootton, GayAvood, Setch, Hunstanton, 
West Winch, St. Germans. 
„ cristata. Gaywood, St. Germans, North Wootton, 
West Winch. 
Anodonta cygnea. In a drain at North Wootton. 
Sfh/ERIUM corneum. Common in most ditches. 
,, ,, var. viTTATA. SaddleboAv. 
„ ,, var. nucleus. St. Germans. 
