The leptothecate hydroid Sertularella mutsuensis Stechow, 1931 is reported on debris from the 2011 Japanese tsunami that came ashore on 5 June 2012 at Agate Beach north of Newport, Oregon. Its discovery on a barnacle (Semibalanus cariosus) from a derelict floating dock originating at Misawa, Honshu, confirms the capability of successful transoceanic dispersal for this species. We compare our specimens to Stechow’s syntype material of S. mutsuensis in collections at the Zoologische Staatssammlung München, and designate a lectotype and paralectotype of the species.

Authors: 
Henry H. C. Choong and Dale R. Calder
Short Description: 
The leptothecate hydroid Sertularella mutsuensis Stechow, 1931 is reported on debris from the 2011 Japanese tsunami that came ashore on 5 June 2012 at Agate Beach north of Newport, Oregon.
Product Number: 
ORESU-R-12-004
Entry Date: 
Tuesday, June 25, 2013
Length: 
6 pp.
Source (Journal Article): 
BioInvasions Records (2013) 2(1):33-38
DOI Number (Journal Article): 
http://dx.doi.org/10.3391/bir.2013.2.1.05
Year of Publication: 
2012