Potamopyrgus antipodarum

Potamopyrgus antipodarum
image_search Terms and anatomy

Size: 12 mm

Distribution: Southeastern SA, east of Port Lincoln

Habitat: Estuaries, freshwater bodies and waterways

Depth: Shallow estuaries to 10+ m depth

This mostly freshwater snail can tolerate some salinity and is occasionally found in estuarine environments. It has been introduced from New Zealand, and is now considered a pest species in many areas around the world. It is usually a brown colour but can vary from dark to light. It is very difficult to distinguish from other similar estuarine snails, and expert examination is recommended.