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Iais floridana
Image courtesy of Marilyn Schotte through the CC BY-NC-SA License
Iais floridana
Taxonomic Group: Crustaceans-Isopods


Iais floridana is a small isopod that lives commensally on the pleopods of the larger burrowing isopod Sphaeroma terebrans, a wood-borer in marine and estuarine habitats. Its native range is unknown, but S. terebrans is native to the Indo-Pacific and the two species may co-occur there. Iais floridana is only known from the Gulf and Eastern coasts of Florida, where it was found in the 1990’s, but its cryptic habitat association means it may be overlooked in other regions. Little is known about its ecology and environmental tolerances, but it has been found in areas ranging from 0 to 15 PSU salinity.

* Content for this species is based on the literature and peer review is pending - if you have comments or feedback please contact Paul Fofonoff at

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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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