Evergreen Natural History Database

Common name(s): Shipworm, Feathery Shipworm

Size:
Up to 7 mm (shell only; entire animal can exceed 1 m)

Range:
Bering Sea to S. California

Habitat:
Intertidal to 90 m. Found boring into wood substrates.

Life History:
All larvae start out as male and, later, about half develop into females. Spawning occurs during January.

*"Size" refers to shell length only and only gives the largest average size for the given species.

Last updated Tuesday, August 29, 2006, by Lisa Ferrier