Conus magus, common name the magical cone, is a species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies.

Like all species within the genus Conus, these snails are predatory and venomous. Their venom contains conotoxins which have powerful neurotoxic effects. Given that they are capable of stinging humans, live cone shells should be handled with great care or preferably not at all.

The variety Conus magus var. decurtatus Dautzenberg, 1910 is a synonym of Conus striolatus Kiener, 1848

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