About Acroloxus lacustris (Linnaeus, 1758)
Acroloxus lacustris (Linnaeus, 1758) is a species of freshwater limpet. Its shell measures 4–7 mm in overall length, with a typical full size of 7 mm long, 3 mm wide, and 2 mm high. The shell is laterally compressed, elongate, and limpet-like: it has no whorls, and is shaped like a cone or hat, with a sharp apex twisted to the left. Shell colour ranges from yellowish-grey to brown. Shell dimensions vary based on the substrate surface: shells are narrow when growing on thin plant stems, more parallel-sided when growing on leaves, and rather widely oval when growing on stones. This species has an Eurosiberian Wide Temperate distribution, found across Europe extending into western and central Siberia. Confirmed recorded locations include the European countries and islands of Belgium, Croatia, Czech Republic, Slovakia, Poland, Germany, Netherlands, Great Britain, and Ireland; a full list of recorded locations can be found in Fauna Europaea. Acroloxus lacustris prefers still water, and lives in habitats including lakes and slow sections of rivers.
