In 1844, van Beneden named the hydroid form of this species as Eudendrium ramosum.
Candelabrum tentaculatum, also called the dreadlocks hydroid or calamari hydroid, is a sessile marine hydroid, that is found off the Cape Peninsula of South Africa.
Nutting's most important publications are systematic papers dealing with marine hydroids, which appeared in the reports of the United States Commission of Fisheries and elsewhere and were reprinted, especially American Hydroids (part i, 1900; part iii, 1915).
It feeds primarily on species of Eudendrium, a very common hydroid genus in the Mediterranean Sea.
Hydroid dermatitis is a cutaneous condition that occurs after contact with the small marine hydroid Halecium.