Specimens of the ivory shell Babylonia japonica were harvested from the Ganyudo area of Suruga Bay, Siuzuoka Prefecture, from June to September 1984, and assayed for toxicity. The results showed that the toxicity of the shellfish, once-disappeared in 1978, recovered up to 500 mouse units/g midget gland. Two responsible toxins were isolated by several steps of column chromatography. Instru-mental analyses allowed us to identify them as neosurugatoxin and prosurugatoxin.
Nippon Suisan Gakkaishi is an official journal of the Japanese Society of Fisheries Science written in Japanese only. The society publishes an English journal, Fisheries Science, as well, which accepts submissions from non-members of the society over the world. Detailed information is available in http://jsfs.jp/en/journals/fisheries-science.
