Nemalion helminthoides
- kingdom: Plantae
- phylum: Rhodophyta
- class: Florideophyceae
- order: Nemaliales
- family: Liagoraceae
- genus: Nemalion
- species: Nemalion helminthoides
Dee Why
New South Wales
AustraliaMadalena
Azores
PortugalTossa de Mar
Catalonia
SpainVarberg
Halland
SwedenHugh Town
Isles of Scilly
Swanage
Wembury
EnglandDunbar
Scotland
United KingdomSitka
AlaskaIsla Vista
Rancho Palos Verdes
Rolling Hills
California
United States