H.  Watanabe and Tokioka, T., ?Two new species and one possibly new race of social Styelids from Sagami Bay, with remarks on their life history, especially the mode of budding?, Publications of the Seto Marine Biological Laboratory, vol. 19, no. 5, pp. 327-345, 1972.

H.  Watanabe and Tokioka, T., ?Two new species and one possibly new race of social styelids from Sagami Bay with remarks on their life history especially the mode of budding?, Publications of the Seto Marine Biological Laboratory, vol. 19, pp. 327-345, 1972.