Shell of Oregon triton (Fusitriton oregonensis); photo by Shellnut on Wikipedia (use permitted with attribution / share alike).
Official State Shell of Oregon
Oregon designated the Oregon triton (Fusitriton oregonensis) as official state shell in 1991. Commonly called the Oregon hairy triton, this sea shell is one of the largest found in the state (reaching up to five inches in length). All Aquatic-Life Symbols
In 1848, a shell expert (conchologist) named the "Fusitriton oregonensis" after the Oregon Territory. Oregon triton shells are found from Alaska to California, washing up on the Oregon coast at high tide.