Freshwater bivalve mollusc

Freshwater bivalve mollusc

Observation - Freshwater bivalve mollusc - UK and Ireland. Description: One of many found in sludge at bottom of garden pond. Sizes seen range from 1-2mm wide to this one, about 10mm wide and 6mm thick.

One of many found in sludge at bottom of garden pond. Sizes seen range from 1-2mm wide to this one, about 10mm wide and 6mm thick.