MolluscaBase name details
original description
(of Ringicula okadai Habe, 1956) Habe T. 1955. A list of the cephalaspid Opisthobranchia of Japan. <i>Bulletin of the Biogeographical Society of Japan</i>, 16-19: 54-79. [details]
basis of record
Higo, S., Callomon, P. & Goto, Y. (1999) Catalogue and Bibliography of the Marine Shell-Bearing Mollusca of Japan. Elle Scientific Publications, Yao, Japan, 749 pp. [details]