Canarium mutabile, common name the variable stromb, is a species of sea snail, a marine gastropod mollusk in the family Strombidae, the true conchs. The shell size varies between 15 mm and 45 mm. This species is distributed in the Red Sea, in the Indian Ocean along Aldabra, the Chagos Atoll, the Comores, Djibouti; the East Coast of South Africa; Eritrea; Kenya ; Madagascar; the Mascarene Basin, Mauritius, Mozambique; Runion, the Seychelles, Somalia, Tanzania; the Mediterranean Sea; the Pacific Ocean along the Philippines.