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Narwhal shrimp (Plesionika narval)

Photo of Narwhal shrimp (Plesionika narval)

Key facts

Scientific name
Plesionika narval
Common name
Narwhal shrimp
Category
Crustaceans
Family
Pandalidae
Genus
Plesionika
Size
6–14 cm
Depth
30–700 m
IUCN status
Least concern (LC)
Danger level
Harmless
Habitats
cave
Behaviours
solitary, schooling
Ocean zones
Asian Pacific, East Atlantic, Indian Ocean & Red Sea, Macaronesia, Mediterranean

Description

Plesionika narval reaches 14 cm. Deep Mediterranean shrimp (Pandalidae) with pink-red body with very long rigid straight characteristic rostrum that can reach body length (hence narwhal, like unicorn tooth). Black eyes. Lives in dense schools from 30 to 700 m in caves, deep crevices and drop-offs of Mediterranean, sometimes in spectacular aggregations of hundreds to thousands of individuals. Moderate commercial fishery in some Mediterranean countries (Greece, Italy). Iconic wide-angle photo subject of technical dives in deep Mediterranean caves for spectacular pink schools.

Photo of Narwhal shrimp

Photo of Narwhal shrimp (Plesionika narval)Photo of Narwhal shrimp (Plesionika narval)Photo of Narwhal shrimp (Plesionika narval)

Frequently asked questions

How big is the Narwhal shrimp?
Narwhal shrimp (Plesionika narval) reaches 6–14 cm in length.
At what depth can you find the Narwhal shrimp?
Narwhal shrimp is found between 30–700 m deep.
Is the Narwhal shrimp dangerous to divers?
Danger level: Harmless.
What is the conservation status of the Narwhal shrimp?
IUCN status: Least concern (LC).
Where can you find the Narwhal shrimp?
Found in: Asian Pacific, East Atlantic, Indian Ocean & Red Sea, Macaronesia, Mediterranean.

Similar species

  • Palinurus elephas - European spiny lobster
  • Clibanarius erythropus - Red-legged hermit crab
  • Homarus gammarus - European lobster
  • Pachygrapsus marmoratus - Marbled rock crab
  • Mithraculus forceps - Red-ridged clinging crab
  • Mithrax spinosissimus - Channel clinging crab

Sources

  • Taxonomy: WoRMS (AphiaID 107662)
  • Photos: iNaturalist (CC BY-NC)
  • Distribution: GBIF (taxonKey 4309688)
  • Conservation: IUCN Red List
  • Encyclopedia: Wikipedia