Hydractinia echinata (Fleming, 1828)

Fleming, J. (1828). A history of British animals, exhibiting the descriptive characters and systematical arrangement of the genera and species of quadrupeds, birds, reptiles, fishes, Mollusca, and Radiata of the United Kingdom; including the indigenous, extirpated, and extinct kinds, together with periodical and occasional visitants. Edinburgh, Bell & Bradfute / London, James Duncan, Pp. i–xxii, 1–565. corrigenda. https://doi.org/10.5962/bhl.title.12859