Description: A slightly tumid, regularly oval shell with low umbos slightly behind the mid point. Umbonal area demarcated by three concentric furrows. Surface very glossy, with prominent irregularly spaced concentric striae. Colour yellowish. Widespread and common. 3-4mm.

World Distribution: Distribution type: Circumpolar Wide-temperate (66).

Irish Distribution: Widespread and common throughout but especially in the centre and east.

Ecology:

• Prefers moderately rich but clean, still or slow-flowing habitats in larger rivers or lakes
• It can occur in marsh drains and streams but only where water conditions are suitable
• Absent from highland or peaty biotopes

Key Identification Features:

• A very glossy shell
• Moderately tumid and a fairly regular oval in outline
• Umbos low and slightly behind the middle
• Umbonal area with three concentric furrows
• Surface with prominent, irregularly spaced, concentric striae
• Colour yellowish

Red list status:

• Least concern (lc).

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

iNaturalist: Euglesa nitida at iNaturalist World Species Observations database.

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

Thumbnails for genus Euglesa