California Department of Fish and Wildlife

Invertebrates of Interest: Subtidal Snails, Sea Cucumbers, Keyhole Limpets, and Other Tidal Invertebrates

Tidal invertebrates. CDFW photo by Derek Stein.

Tidal invertebrates. CDFW photo by Derek Stein.

California's coastal waters are home to a multitude of invertebrates (species lacking a bony skeleton). A small fraction of tidal invertebrates, including subtidal snails, sea cucumbers, and keyhole limpets, are actually targeted by California's recreational and commercial fisheries. In the following links, visitors can learn more about tidal invertebrate species identification, biology, habitat, geographic range, fishing methods, and more.