Bithynia tentaculata


Shell height up to 12 to15 mm, width 5 to 7 mm. Sometimes known as the 'Faucet Snail' it has a shiny pale brown shell, oval in shape, with a relatively large and rounded spire consisting of 5 to 6 somewhat flattened whorls, no umbilicus, and a very thick lip. The opening is less than half the height of the shell. It has a circular 'lid' (called an operculum) which can seal off the entrance to the shell giving protection. This snail has long pointed tentacles.

Identification difficulty

Found in weedy ponds and slow moving waterways.

Life History

The snail is sexually mature by the time the height of shell reaches 8 mm in size.

UK Status

This common snail in England and Wales, but scarcer further north into Scotland.

VC55 Status

Common in Leicestershire and Rutland.

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Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map