Conus genuanus, common name the garter cone, is a species of sea snail. Like all species within the genus Conus, these snails are predatory and venomous. The ground color of the shell is pink-brown or violaceous brown, with revolving narrow lines of alternate white and chocolate quadrangular spots and dashes. This species occurs in the Atlantic Ocean from the Canary Islands and Cape Verde to Angola; in the Indian Ocean along Madagascar.
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The size of an adult shell varies between 33 mm and 75 mm. The ground color of the shell is pink-brown or violaceous brown, with revolving narrow lines of alternate white and chocolate quadrangular spots and dashes. These lines are usually alternately larger and smaller. The surface of the shell is usually smooth, but sometimes the lines are slightly elevated. The spire is smooth.
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