Pteropurpura trialata (G. B. Sowerby II, 1834) Three-wing Murex

Pteropurpura trialata (G. B. Sowerby II, 1834)

Pteropurpura trialata (G. B. Sowerby II, 1834)

SCUBA at 20 feet on boulder, San Pedro Breakwater, Los Angeles, California, 2/22/2003 (85 mm.)
Collected and photographed by Roger Clark