Question 1

Are cone snails in Hawaii dangerous?

Accepted Answer

Yes — cone snails found in Hawaii can be extremely dangerous and potentially fatal. The Geography Cone (Conus geographus) and Textile Cone (Conus textile) are found in Hawaiian waters and are among the most venomous animals on Earth. Their venom, called conotoxin, can cause paralysis and respiratory failure. There is no antivenom. Never pick up any cone-shaped shell — even a shell that appears empty can still have a live snail inside.

Question 2

What do cone snails look like in Hawaii?

Accepted Answer

Cone snails have a distinctive cone-shaped shell, wide at one end and narrow at the other, like an ice cream cone. They range from 1-9 inches in length. Hawaiian species include the Geography Cone (brown/white patterned, up to 6 inches), Textile Cone (brown net-like pattern), Striated Cone, and many others. All cone snails should be treated as potentially dangerous. Do not pick up any cone-shaped shell — ever.

Question 3

What happens if a cone snail stings you?

Accepted Answer

A cone snail sting delivers conotoxin via a harpoon-like tooth that can extend from any part of the shell opening. Symptoms begin within minutes to hours and may include: intense localized pain, numbness spreading from the sting site, tingling or burning, nausea, vision changes, difficulty breathing, paralysis, and in severe cases, cardiac arrest. There is NO antivenom. Treatment is supportive — call 911 immediately for any cone snail sting.

Question 4

Where are cone snails found in Hawaii?

Accepted Answer

Cone snails are found throughout Hawaii's reef areas, tide pools, and sandy reef flats. They are most active at night and hide under rocks and coral during the day. Common locations include Hanauma Bay, reef areas on all islands, tide pools at rocky beaches, and sandy-rocky reef interfaces. They can also be found in shallow water wading areas.

Question 5

What should I do if I'm stung by a cone snail?

Accepted Answer

A cone snail sting is a medical emergency. Immediately: (1) Call 911 or get to emergency services as fast as possible. (2) Keep the victim calm and still — movement spreads venom. (3) Immobilize the affected limb below heart level. (4) Apply pressure immobilization bandaging if trained to do so. (5) Do NOT cut the wound, suck out venom, or apply tourniquet. (6) Monitor breathing and be prepared to perform CPR. (7) Get to a hospital with an ICU — there is no antivenom, treatment is supportive.