Planorbis corneus var. albina, accepted as Planorbarius corneus (Linnaeus, 1758) Kenn Moor, Somerset, Watsonian Vice County 6. J R Le B Tomlin

Palaemon sp., freshwater shrimp

Bithynia tentaculata (Linnaeus, 1758), Spilmersford Mains, Pencaitland, East Lothian, Scotland, Waterston, A. Rodger, 31st August 1930, Watsonian Vice County: 82, includes a figured specimen

Bathyomphalus contortus (Linnaeus, 1758), Loch below Westloch and Coldingham Loch, Berwickshire, Scotland, Watsonian Vice County 81, 1933, D. K. Kevan Collection

Bithynia leachii (Sheppard, 1823), Uxbridge, Middlesex, 1920, Watsonian Vice County 21.

Stagnicola palustris (O. F. Müller, 1774), Curling pond, Aberlady, Haddingtonshire, [Luffness pond], East Lothian, Scotland, Watsonian Vice County 82, A Rodger Waterston and D K Kevan, 21 March 1931

Figured specimen of Lymnaea stagnalis (Linnaeus, 1758), Scarborough 54/08, Watsonian Vice County 62 , A.E. Salisbury Collection

Figured specimen of Physella acuta (Draparnaud, 1805), near Kettering, Hants., 42/87, Watsonian Vice County 32, A.E. Salisbury Collection

Figured specimen of Planorbis carinatus O. F. Müller, 1774, Colnbrook, 51/07, Watsonian Vice County 24, 9.18.13, A.E. Salisbury Collection

Figured specimen of Gyraulus albus (O. F. Müller, 1774), Sandling, near Hythe, 61/13, Watsonian Vice County 15, A.E. Salisbury Collection

Physa fontinalis (Linnaeus, 1758), found in the Grand Canal, Dublin, Watsonian Vice County H 21, D.K. Kevan Collection, 11 January 1930, includes a figured specimen

Radix balthica (Linnaeus, 1758) or Ampullaceana balthica (Linnaeus, 1758), or Peregriana peregra (O.F. Müller, 1774), Common Pond snail, ditch by Harelaw Reservoir, Watsonian Vice County 83, AR Waterston, 25th September 1931, includes a figured specimen. 3 filed speperately from Fitty Burn, Fife, Watsonian Vice County 85, 5 May 1935

Planorbis planorbis (Linnaeus, 1758), Pevensey Levels, East Sussex. 4th December 1955, includes a figured specimen

Potamopyrgus antipodarum (Gray, 1843), outlet stream from Loch Leodasay, Clachan, North Uist, Scotland, Watsonian Vice County 110, A R Waterston Collection, 22 July 1933, includes a figured specimen

Bulinus globosus (Morelet, 1866), Caculuvar river, Angola, Africa. This species is an intermediate host for the parasite Schistosoma haematobium Coll R H Beddome collection no 8182. (within A. E. Salisbury Collection)

Freshwater gastropod, Biomphalaria glabrata (Say, 1818). This species are the intermediate hosts of Schistosoma mansoni, a trematode parasite which infects humans. Moreira Sales. Parana, Brazil. Animal in 74% IDA, shell in the dry collection Z.2001.100.2. Found unregistered in the collection, 2001.