Saito, Y.; Okuyama, M. (2003). Studies on Japanese botryllid ascidians. IV. A new species of the genus Botryllus with a unique colony shape, from the vicinity of Shimoda. Zool. Sci. 20: 1153-1161.
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Saito, Y.; Okuyama, M.
2003
Studies on Japanese botryllid ascidians. IV. A new species of the genus Botryllus with a unique colony shape, from the vicinity of Shimoda