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Hydroides dirampha
Image courtesy of Dr. Erica Keppel, Smithsonian Environmental Research Center
Hydroides dirampha
Taxonomic Group: Annelids-Polychaetes


Hydroides dirampha is a serpulid tubeworm. It was first described from Saint Thomas in the U.S. Virgin Islands. Its native region is unknown, but often considered to be the tropical Western Atlantic, although the Indo-Pacific is also possible. It is believed to be introduced in the Gulf of Mexico, Atlantic Florida, the Northeast Pacific (from Mexico and California), Hawaii, Australia, New Zealand, Japan and the Mediterranean Sea. It can form dense aggregations and settles on hard surfaces such as rocks, shells, corals, pilings, floats and ships’ hulls. Reported impacts include fouling on aquaculture cages, ships and buoys.

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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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