Jenkins' Spire Snail - Potamopyrgus antipodarum

Alternative names
New Zealand Mudsnail

5.5mm. This small freshwater snail has an operculum. It has a right-handed coiling, elongated shell with 7 or 8 whorls separated by deep grooves and small spines sometimes occur on the widest part of each whorl. The mouth aperture is oval, or pointed oval (almond-shaped), and its height is less than the height of the spire. The mouth also protrudes slightly from the main shell.

Identification difficulty

Fresh and brackish water habitats.

When to see it

All year round.

UK Status

An invasive species now widespread and frequent in most of Britain.

VC55 Status

Frequent 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