Tetrodotoxin horseshoe crab

Kanchanapongkul J, Krittayapoositpot P. An epidemic of tetrodotoxin poisoning following ingestion of the horseshoe crab Carcinoscorpius rotundicauda. Southeast Asian J Trop Med Public Health 26 364-367, 1995. 

Kungsuwan, A., Nagashima, Y., Noguchi, T., Shida, Y., Suvapeepan, S., Suwansakomkul, P., and Hashimoto, K. 1987. Tetrodotoxin in the horseshoe crab Carcinoscorpius rotundicauda inhabiting Thailand. Nippon Suisan Gakkaishi 53, 261-266. 

Tanu, M.B. and Noguchi, T. 1999. Tetrodotoxin as a toxic principle in the horseshoe crab Carcinos-corpius rotundicauda collected from Bangladesh. J. Food. Hyg. Soc. Jpn. 40, 426-430. 

Several species of crabs are rendered toxic by the presence of okadaic acid esters, tetrodotoxin or related derivatives, such as 11-oxotetrodotoxin (6S) and 11-nor-tetrodotoxin-6(R)-ol (Llewellyn and Davie, 1987 Arakawa et al., 1994 Miyazawa and Noguchi, 2001 Oikawa et al, 2004 Torgersen, Aasen, and Aune, 2005). The same is true for the horseshoe crab Carcinoscorpius rotundicauda of Cambodian origin, which can be rendered toxic by tetrodotoxin (Ngy et al, 2007). 

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