Volcano (or Thatched) Barnacles (Tetraclita rubescens)
Contributed by TPERP Tracey Jones
Size: 2 inches.
Diet: filter feeds on plankton (very small plants and animals that float in the water) with hand-like projections called cirri.
Predators: snails and sea stars.
Defense: seals itself inside it’s volcano-shaped home.
Fun Fact: the adults are pink to red in color but the juveniles are white.
Phylum:Arthropoda (Firm, jointed exoskeleton and jointed appendages)
Class:Crustacea (Barnacles, Beach hoppers, Shrimps, Lobsters, Crabs, etc.)
Scientific name:Tetraclita rubescens
- Seashore of Southern California
a LonePine Field Guide by Ian Sheldon
- Life Between the tides
The Natural History of the Common Seashore Life of Southern California
by Jeffrey L. Brandon and Frank J. Rokop
Last revised 29-Jul-13