WoRMS taxon details
Nomenclatureoriginal description
Kramp, P. L. (1961). Synopsis of the medusae of the world. <em>Journal of the Marine Biological Association of the U. K.</em> 40: 1-469. (look up in IMIS) page(s): 362-363 [details] 
original description
(of Versura Haeckel, 1880) Haeckel, E. (1880). Das System der Acraspeden. 2te Hälfte des Systems der Medusen. Acht Nachträge zur Vervollständigung des Systems. <em>Denkschriften der Medicinisch-Naturwissenschaftlichen Gesellschaft zu Jena.</em> 2: 361-672, plates 21-40., available online at https://www.biodiversitylibrary.org/page/32605982 [details]
original description
(of Crossostoma Agassiz, 1862) Agassiz, L. (1862). Contributions to the natural history of the United States of America. <em>Little Brown, Boston.</em> 4: 1-380, pls 1-19., available online at https://www.biodiversitylibrary.org/page/16068829 page(s): 154-155 [details]
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