Published online by Cambridge University Press: 16 October 2009
This species is described and figured by Gosse in his Actinologia Britannica, quoting its original discoverer Holdsworth, who obtained a number of specimens at the entrance of Dartmouth harbour from among the roots of Laminaria. In Section III of the Appendix, Gosse (p. 355) adds: “I have taken this at Torquay. It has also been found at Mizen Head, and sent me from Banff. The markings are true to the description, and leave no doubt of its distinctness as a species.”