Dialysis dispar
- kingdom: Animalia
- phylum: Mollusca
- class: Bivalvia
- order: Myida
- family: Xylophagidae
- genus: Dialysis
- species: Dialysis dispar
Agassiz
Armstrong
Oak Bay
White Rock
British Columbia
Canada
Eureka
California
Corvallis
Forest Grove
Salem
Oregon
Fort Lewis
Seattle
Sumner
Tenino
Walla Walla
Walla Walla East
Washington
United States