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Guildfordia yoka
Image courtesy of Femorale via the Encyclopedia of Life and the Creative Commons CC BY-NC 3.0 License.
Guildfordia yoka
Taxonomic Group: Mollusks-Gastropods


Guildfordia yoka is a marine turban snail commonly known as the Yoka Star Turban. It is native to Japan, the Philippines, and northern Australia. One living specimen was found 100 years ago in a dredge off the Golden Gate Bridge in San Francisco Bay and no individuals have been reported since. This species is characteristic of deep, soft-bottom sediments and little is known about its biology or life history.

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Fofonoff PW, Ruiz GM, Steves B, Simkanin C, & Carlton JT (2018)
National Exotic Marine and Estuarine Species Information System.
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Marine Invasions Lab
Smithsonian Environmental Research Center

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