Cone snails are mostly found in warm tropical and subtropical seas around the world, especially in the Indo-Pacific region, but some species also occur in slightly cooler waters such as the Mediterranean and off California. They usually live on or around coral reefs, sandy bottoms, and rocky areas from the intertidal zone down into deeper water, often hiding under sand, stones, or coral rubble.

Main regions

  • Indo-Pacific (including the Indian and Pacific Oceans) holds the greatest diversity of cone snails, with around 60% of all known species.
  • They are also found in the tropical eastern Pacific and both the western and eastern tropical Atlantic, plus the Caribbean and Red Sea.
  • A few species live in warm-temperate zones such as southern California, the Cape coast of South Africa, and parts of the Mediterranean.

Typical habitats

  • Shallow coastal waters near coral reefs, reef flats, and reef slopes, where they bury in sand or hide under coral shelves and rubble.
  • Intertidal and subtidal zones, from tide pools and low-tide marks down to at least 30 m depth for many species.
  • Some species also occur under stones, among seaweed, or in sandy areas adjacent to reefs rather than on the reef itself.

Notable local examples

  • Along Australia’s coasts, cone snails occur from north Western Australia across to southern Queensland, especially around the Great Barrier Reef.
  • California’s cone snail is found from around San Francisco south to Baja California, living in sand or gravel near rubble in cooler subtropical waters.
  • Highly venomous species such as the geography cone and textile cone are widespread across tropical Indo-Pacific coral reef systems, including parts of northern Australia and Pacific islands.

Bottom line: cone snails are marine predators of warm seas, most often where there is coral, sand, and rubble for them to hide in, and they should always be treated with caution if encountered on beaches or in shallow water.

Information gathered from public forums or data available on the internet and portrayed here.