Scale Lanx

Photo is needed for this Strategy feature.
Submit photo to:


  • Species Common Name Scale Lanx
  • Species Scientific Name Lanx klamathensis


Special needs

These freshwater mollusks are found in large, spring-fed lakes and rivers.

Limiting factors

This species has a very restricted distribution. Habitat loss, including spring alteration and decreased water flow, represents a major threat to the scale lanx. Sedimentation and nutrient inputs from dredging, mining, road construction, and other land use practices may smother substrates or reduce egg survival.

Conservation actions

Maintain appropriate water flow and quality. Prevent or mitigate for water diversions, dredging, or other activities that could increase sediment or nutrient levels.