Abstract
THE genus Rathkea, one of the Anthomedusæ, is represented on the Atlantic coast of North America by three species: (1) the widely distributed blumenbachii, (2) the northern octopunctata, and (3) the southern elegans. The species octopunctata is widely distributed in the North Atlantic1, being found off the coasts of Norway, Barents Sea, Heligoland, the British Isles and New England. Fewkes2 noted the presence of octopunctata in Narragansett Bay and stated that it is common off the New England coast in March. A well-marked variety of octopunctata, namely, grata, A. Agassiz, is confined to the Atlantic coast of North America, where, according to Mayer1, it is common north of New Jersey.
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References
Mayer, A. G., "Medusae of the World", Vol. 1, Carnegie Institution of Washington, Washington, D.C. (1910).
Fewkes, J., Bull. Mus. Comp. Zool., Harvard College, 8, 142, plate 1, Figs. 1–7 (1881).
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LITTLEFORD, R. Distribution of Rathkea. Nature 143, 1070–1071 (1939). https://doi.org/10.1038/1431070a0
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DOI: https://doi.org/10.1038/1431070a0
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