False Killer Whale

  • Irish name: An Chráin dhubh bhréige
  • Latin name: Pseudorca crassidens
  • Size: 5 – 6 m
  • Diet: Squid and large predatory fish such as tuna

Torpedo-like in shape, with a rounded head, tall curved dorsal fin with slightly elongated flippers. Dark black in colour throughout the body with a light grey “bib” on the throat.


They tend to avoid boats but do occasionally spy-hop and breach. They move in small, close-knit groups that range in size up to 20 individuals.


Very little is known about this species given it has been sighted only a handful of times offshore in the Porcupine Seabight and Rockall Bank predominantly during the summer months and a skull was recovered from the River Moy, Co. Mayo in 1967.

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