Babcock, R. C.; Ryland, J. S. (1990). Larval development of a tropical zoanthid (Protopalythoa sp.). Invertebrate Reproduction and Development, 17, 3, 229-236

additional source

Bamford, E.E. 1912Pelagic actiniarian larvæ.Transactions of the Linnean Society, 2: 395-405

additional source

Calder, D. R. (1986). Hydroida (Hydroid polyps). John Wiley & Sons. New York., edition 1st, pp. 742

additional source

Carlgren, O. (1906). Die Actinien-Larven. Nordisches Plankton, chapter XI, pp. 65-89

original description

Carlgren, O. (1923). Ceriantharia und Zoantharia der Deutschen Tiefsee-Expedition. <em>Deutsche Tiefsee-Expedition 1898-1899.</em> 19(7): 243-337.

additional source