Diving with Smashing Mantis Shrimp

Smashing mantis shrimp are neither shrimp, nor mantis, they are a separate group of 450 species called stomapods. They are present at all our coral reefs, but not always easy to spot during Koh Lanta dive trips.

Sporting a thick shell that covers the back of the head and the first four segments of the main body, they are among the most efficient crustacean predators. Typically growing to around 10 - 15 cm in length, this group of animals have some of the most complex eyes in the world, including the ability to see polarised light.

Smashing mantis shrimp have two specialised calcified "smashing clubs" at the front of the body that are used to smash crab and clam shells at over 50mph in just a fraction of a second, and are known to crack and punch holes in aquarium glass.

Smashing Mantis Shrimp are solitary and territorial creatures, making burrows in hard seabed or coral cavities which are used as sites for mating and for keeping their eggs safe.

Find Out More

• Allen, G., Steene, R., Humann, P., DeLoach, N. (2003) Reef Fish Identification, Tropical Pacific. Jacksonville, FL., USA: New World Publications, Inc., ISBN 1-878348-36-1.
• Humann, P., DeLoach, N., (2010) Reef Creature Identification, Tropical Pacific. Jacksonville, FL., USA: New World Publications Inc., ISBN 978-1-878348-44-9
• Debelius, H. (2013) Indian Ocean Reef Guide. Frankfurt, Germany: IKAN - Unterwasserarchiv, ISBN 978-3-939767-52-7.
• Debelius, H. (2004) Nudibranchs and Sea Snails, Indo-Pacific Field Guide. Frankfurt, Germany: IKAN - Unterwasserarchiv, ISBN 3-925919-51-1
• Erhardt, H., Knop, D. (2015) Corals Indo-Pacific Field Guide. Frankfurt, Germany: IKAN - Unterwasserarchiv, ISBN 3-925919-69-4.
• Veron J.E.N., Stafford-Smith M.G., Turak E. and DeVantier L.M. (2016). Corals of the World

More Marine Life References and Further Information