Androctonus; Print; Fattail scorpion or fat-tailed scorpion is the common name given to scorpions of the genus Androctonus; one of the most dangerous groups of scorpions species in the world. They are found throughout the semi-arid and arid regions of the Middle East and Africa. They are a moderate sized scorpion; attaining lengths of 10 cm (just under 4 in). Their common name is derived from their distinctly fat metasoma; or tail; while the Latin name originates from Greek and means "man killer". Their venom contains powerful neurotoxins and is especially potent. Stings from Androctonus species are known to cause several human deaths each year. Several pharmaceutical companies manufacture an antivenom for treatment of Androctonus envenomations.