Lophosiphonia villum
- kingdom: Plantae
- phylum: Rhodophyta
- class: Florideophyceae
- order: Ceramiales
- family: Rhodomelaceae
- genus: Lophosiphonia
- species: Lophosiphonia villum
Nanaimo
British Columbia
Canada
Enewetak
Enewetak Atoll
Marshall Islands
Carmel-by-the-Sea- Del Monte Forest
California
United States