Published November 7, 2022
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A fossil species found living off southern California, with notes on the genus Cymatioa (Mollusca, Bivalvia, Galeommatoidea)
- 1. Santa Barbara Museum of Natural History, Santa Barbara, United States of America
- 2. University of California, Santa Barbara, United States of America
Description
A small bivalve mollusk previously only known from the Pleistocene of Los Angeles County has recently been found living intertidally near Santa Barbara, California. The bivalve has been determined to be Cymatioa cooki (Willett, 1937), a member of the Galeommatoidea J.E. Gray, 1840. We document the habitat for the newly discovered C. cooki, and compare it to C. electilis (Berry, 1963), the other extant member of this genus recorded from the region. Cymatioa cooki is rare, and while many galeommatoid species have been shown to be commensal with other invertebrates, we have been unable to determine any specific commensal relationships for it.
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- Figure: 10.3897/zookeys.1128.95139.figure1 (DOI)
- Figure: 10.3897/zookeys.1128.95139.figure2 (DOI)