Green alga
- kingdom: Plantae
- phylum: Chlorophyta
- class: Ulvophyceae
- order: Ulotrichales
- family: Ulotrichaceae
- genus: Acrosiphonia
- species: Acrosiphonia arcta
Stanley
00
Falkland Islands (Malvinas)Nortorf
Schleswig-Holstein
GermanyFalkenberg
Varberg
Halland
Sweden- United Kingdom
Diamond Ridge
Dutch Harbor
Homer
Unalaska
AlaskaEastport
MaineNewport
Rhode Island
United States