(Diodon hystrix)
Both pufferfish and porcupinefish have tetrodotoxin in their internal organs.This poison is lethal,it is about 1200 times more deadly than cyanide and currently there is no antidote.Despite this,Fugu Pufferfish are considered a delicacy in places such as Japan and Korea where they are prepared by chefs trained and specially permitted to remove the toxic organs.Incompetently prepared the fish causes several deaths every year.The Emperor of Japan is banned from eating this delicacy for his own protection