Usually occurs on exposed coast, on sand or hard mud bottom below low tide, rarer in bays. Usually found inside objects, especially mollusk shells, clam burrows and bottles. Demersal spawners in nearshore habitats (Ref. 56049). Female deposits eggs in clam burrows or under rocks, male guards them.
- Eschmeyer, W.N., E.S. Herald and H. Hammann 1983 A field guide to Pacific coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 336 p. (Ref. 2850) http://www.fishbase.org/references/FBRefSummary.php?id=2850&speccode=2592