Description: A very tumid, rounded oval shell with prominent central umbos. Surface with silky/glossy periostracum ornamented by fine, regular striae. Colour grayish to brownish white with scattered red-brown deposits. Common across Ireland. 2.5-3.5mm.

World Distribution: Distribution type: Eurasian Boreo-temperate (55).

Irish Distribution: Widely distributed in Ireland but probably commoner towards the west.

Ecology:

• Characteristic of highland lakeshore communities together with Euglesa lilljeborgi
• But found across a wide altitudinal and climatic range
• Occurs in a range of habitats, from loughans and lakeshores to lowland rivers and canals

Key Identification Features:

• A small, convex, tumid shell
• Evenly rounded with prominent central umbos
• Surface silky/glossy and sculptured by fine, regular striae
• Colour grayish to brownish white with scattered red-brown deposits

Red list status:

• Least concern (lc).

Distribution Map from NBN: Euglesa hibernica at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Euglesa hibernica at iNaturalist World Species Observations database.

GBIF data for Euglesa parvula | Classification: Bivalvia, Sphaeriida, Sphaeriidae, Euglesa

Thumbnails for genus Euglesa