Disclaimer:

The Nonindigenous Occurrences section of the NAS species profiles has a new structure. The section is now dynamically updated from the NAS database to ensure that it contains the most current and accurate information. Occurrences are summarized in Table 1, alphabetically by state, with years of earliest and most recent observations, and the tally and names of drainages where the species was observed. The table contains hyperlinks to collections tables of specimens based on the states, years, and drainages selected. References to specimens that were not obtained through sighting reports and personal communications are found through the hyperlink in the Table 1 caption or through the individual specimens linked in the collections tables.

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Common name: hydroid

Synonyms and Other Names: Laomedea clarki

Taxonomy: available through www.itis.gov

Native Range: According to Claudia Mills (1998), this is one of several Gonothyraea species reported from the Pacific Coast by Fraser (1937).  If it is actually a single species, then it may be native to the eastern Pacific and should not be considered nonindigenous.

Alaska	Hawaii	Puerto Rico & Virgin Islands	Guam Saipan

Hydrologic Unit Codes (HUCs) Explained
Interactive maps: Point Distribution Maps

References: (click for full references)

Mills, C. 1998.   Commentary on species of Hydrozoa, Scyphozoa and Anthozoa (Cnidaria) sometimes listed as non-indigenous in Puget Sound.

Other Resources:
WDFW -- Non-Indigenous Aquatic Nuisance Species

Marine Invasive Species and Biodiversity of South Central Alaska ...

Table 3A distinct final.xls

Oregon Aquatic Nuisance Species Management Plan

Cnidaria of Prince William Sound

San Francisco Bay Reports and Publications

Author: Fuller, P.

This information is preliminary or provisional and is subject to revision. It is being provided to meet the need for timely best science. The information has not received final approval by the U.S. Geological Survey (USGS) and is provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the information.