Acorn worm
- kingdom: Animalia
- phylum: Hemichordata
- class: Enteropneusta
- order:
- family: Harrimaniidae
- genus: Saccoglossus
- species: Saccoglossus kowalevskii
Kittery- Kittery Point
Maine- Harwich Port
- Vineyard Haven
- Yarmouth
Massachusetts- New Castle
New Hampshire- Beaufort
North Carolina- Gloucester Point
- Yorktown
Virginia
United States