A recent survey on toxicity of the Japanese ivory shell from Ganyudo area, Shizuoka Prefecture, and identification of responsible toxins.

@inproceedings{Tsuji1986ARS,
  title={A recent survey on toxicity of the Japanese ivory shell from Ganyudo area, Shizuoka Prefecture, and identification of responsible toxins.},
  author={Keiichiro Tsuji and Toshinori Fukuyama and Koichi Hirai and Ryukan Natsuyama and Takuo Kosuge},
  year={1986}
}
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.