| Citation | Smithsonian Institution, 2016 Hydractinia polyclina Agassiz, 1862. http://collections.si.edu/search/results.htm?q=Hydractinia%09polyclina [Accessed 08/11/2016]. |
| Ref. | 110635 Smithsonian Institution, 2016 |
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| Named Used as Valid | Hydractinia polyclina |
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