Ribbed Grass Snail
Ribbed Grass Snail - Vallonia costata
Description
2.2mm - 2.7mm.Trumpet-like and thickened mouth which is large and circular. The shell is strongly and evenly ribbed. The shell is pale and opaque.
Similar Species
Vallonia pulchella and V. excentrica are of similar size with a large round mouth but both lack the ribbed shell.
Identification difficulty
ID checklist (your specimen should have all of these features)
- around 2.5mm
- round mouth
- ribbed shell
Habitat
Dry calcareous grassland, rocks and walls.
When to see it
All year.
UK Status
Reasonably common and widespread in the south-east of England particularly.
VC55 Status
Uncommon but under-recorded.
Steve Woodward
Plungar Churchyard
29 October 2017
David Nicholls
Watermead South
29 January 2024
Steve Woodward
Plungar Churchyard
29 October 2017
David Nicholls
Bloody Oaks Quarry
04 August 2018
David Nicholls
Bloody Oaks Quarry
04 August 2018
Leicestershire & Rutland Map
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MAP KEY:
Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020
UK Map
Additional images
No additional images available for this species.