T.  Hoshino and Tokioka, T., ?An unusually robust Ciona from the northeastern coast of Honsyu Island, Japan?, Publications of the Seto Marine Biological Laboratory, vol. 15, no. 4, pp. 275-290, 1967.

T.  Tokioka, ?On a small collection of ascidians from the vicinity of Nhatrang, Viet Nam?, Publications of the Seto Marine Biological Laboratory, vol. 24, no. 5, pp. 391-402, 1967.