GASTROPODA (slugs and snails)

Further Information

Lab. techniques

To prepare microscope slides of the radulum:

1. Gently cut off or extract the head region of the dead snail.
2. Macerate in 5% KOH in a hot waterbath until the tissues disintegrate, (about 10 mins for a small snail)
3. Find the radulum (not always easy! Even adding Safranin to the alkali doesn't help)
4. Stain in Safranin
5. Wash
6. Make a temporary mount in lactophenol (but this tends to dissolve out the stain: need to experiment with other stains eg Lignin Pink)

Subtaxa

Rank	Taxon

Subclass	OPISTHOBRANCHIA (opisthobranchs)	21	263	137		23
Subclass	PROSOBRANCHIA (operculate molluscs)	57	380	288	8	53
Subclass	PULMONATA (slugs and snails)	57	249	160	10	29

Suggested Literature

Identification Works

Cameron, R.A.D. & Redfern, M., 1976	British Land Snails
Macan, T.T. & Cooper, R.D., 1960	A Key to the British Fresh- and Brackish-Water Gastropods
Morton, J.E. & Machin, J., 1959 (Land snails)	A key to the Land snails of the Flatford Area, Suffolk
Wardhaugh, A.A., 1989	Land Snails of the British Isles
Cercle de Mycologie de Mons (Belgique): (Page perso de JJ. Wuilbaut): http://users.skynet.be/jjw.myco.mons	Cercle de Mycologie de Mons (Belgique): (Page perso de JJ. Wuilbaut)
Freshwater
Janus, H., 1965	The Young Specialist looks at Molluscs
Marine
UK Seashells: http://www.fredandsarah.plus.com/ukseashells	UK Seashells
Plankton
Newell, G.E. & Newell, R.C., 1973 (larvae)	Marine Plankton - a practical guide
Planktonic larvae
Apstein, C. & Brandt, K.A.H. (eds), 1901	Tunicata, Mollusca
Terrestrial
Janus, H., 1965	The Young Specialist looks at Molluscs