Stephenson, T. A. (1920). On the classification of Actiniaria. Part I. -- Forms with acontia and forms with a mesogloeal sphincter. Quarterly Journal of Microscopical Science. 64, 2, (256): 425-574.
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Stephenson, T. A.
1920
On the classification of Actiniaria. Part I. -- Forms with acontia and forms with a mesogloeal sphincter.