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A mantis shrimp - Rissoides desmaresti

Rissoides desmaresti

Image Rohan Holt - Rissoides desmaresti held in gloved hand. Image width ca 10 cm.
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Distribution map

Rissoides desmaresti recorded (dark blue bullet) and expected (light blue bullet) distribution in Britain and Ireland (see below)

Why do the maps differ?

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Rissoides desmaresti is not listed under any importance categories.

Key identification features Key identification features

  • A large burrowing shrimp, up to 10 cm long.
  • Has a pair of large mantis-like claws, each with 5 curved barbs.
  • The body is elongated and flattened from above with a small, shield-shaped shell behind the head.

Habitat Habitat

  • From the lower shore to depths of 15 - 50 m.
  • Lives in simple burrow systems in sand or gravel.
  • Burrows are elongated and u-shaped with two openings, one larger than the other, usually up to one burrow per square metre of sea bed.

Species facts Species facts

  • This species is usually regarded as a warm water species and its presence in British waters is thought to be related to an increase in sea temperatures.
  • The 2 large, sharp, barbed claws are used for spearing and holding prey.
  • There is one other species of mantis shrimp in British waters, (Platysquilla eusebia).
  • It can be differentiated from Rissoides desmaresti as it has 12 to 15 barbs on its claws as opposed to 5.

Want to read more?

Have a look at the intermediate review.

Sightings Have you seen a a mantis shrimp? If so please submit your record.