The families of British non-marine molluscs (slugs, snails and mussels)

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L. Watson and M. J. Dallwitz

Contents

These keys and descriptions were generated from a DELTA database (Dallwitz 1980; Dallwitz, Paine, and Zurcher 1993).

Introduction

Conventional key • Interactive key, including interactive information retrieval

The interactive key allows free choice of characters, is easy to use, and can lead to correct identifications in spite of occasional errors. It can display all the illustrations, full and partial descriptions, diagnostic descriptions, differences and similarities between taxa, lists of taxa exhibiting or lacking specified attributes, and distributions of character states within any set of taxa.

Character list •  Terminology • Implicit attributes

Poems by Giles Watson

Acknowledgements • References • Citation • Contacts, conditions of use, contributions

Descriptions

These descriptions were generated from a DELTA database (Dallwitz 1980; Dallwitz, Paine, and Zurcher 1993). The bold parts are diagnostic descriptions, generated with the aid of Intkey (Dallwitz et al. 1993). They distinguish most taxa in at least one respect from the other taxa.

• Aciculidae • Acroloxidae • Agriolimacidae • Ancylidae • Arionidae • Assimineidae

• Bithyniidae • Boettgerillidae • Bradybaenidae

• Chondrinidae • Clausiliidae • Cochlicopidae

• Discidae • Dreissenidae

• Ellobiidae • Enidae • Euconulidae

• Ferussaciidae

• Helicidae • Hydrobiidae

• Limacidae • Lymnaeidae

• Margaritiferidae • Milacidae

• Neritidae

• Physidae • Planorbidae • Pomatiasidae • Punctidae • Pupillidae • Pyramidulidae

• Sphaeriidae • Succineidae

• Testacellidae • Truncatellidae

• Unionidae

• Valloniidae • Valvatidae • Vertiginidae • Vitrinidae • Viviparidae

• Zonitidae


Cite this publication as: ‘Watson, L., and Dallwitz, M.J. 2005 onwards. The families of British non-marine molluscs (slugs, snails and mussels). Version: 4th January 2012. http://delta-intkey.com’.

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