The date 1828 often used for this species is the date of publication of the text. The original indication of the species name was in the plates, published in 1822..
Amathia verticillata (as Zoobotryon) by Peter J. Bryant - at Natural History of Orange County.
A colour photograph by Karen Gowlett-Holmes is available.
Zoobotryon verticillatum - at the Smithsonian Marine Station at Fort Pierce, Florida.
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