Tagelus californianus, common name California tagelus, is a species of saltwater clams, marine bivalve mollusks belonging to the family Solecurtidae.
Distribution This species can be found in the Eastern Pacific from the Gulf of California to Oregon.Shifts in fish and invertebrates in California estuaries Southern California Academy of Sciences. v.100 (2001)
Description Shells of Tagelus californianus can reach a length of and a height of about . These shells are yellowish-white, with rust-colored stains and a dark periostracum. The posterior margin is slightly sinuous.Angeline Myra Keen Sea Shells of Tropical West America: Marine Mollusks from Baja California to Peru
References
Coan, E. V.; Valentich-Scott, P. (2012). Bivalve seashells of tropical West America. Marine bivalve mollusks from Baja California to northern Peru. 2 vols, 1258 pp