The Pacific razor clam, "Siliqua patula", is a bivalve mollusk with an elongated oblong narrow shell which ranges from 3 to 6¼ inches in length.
The Pacific razor clam, "Siliqua patula", is a species of marine bivalve mollusk in the fmaily Cultellidae. It has an elongated oblong narrow shell, which ranges from 3 to 6¼ inches in length.