EnglishWikipedia has an article on:

sailfish

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Wikispecies has information on:

Istiophorus

Wikispecies

Fromsail +‎fish.

sailfish (pluralsailfishesorsailfish)

1. A fish of the genusIstiophorus, having a characteristicsail-like fin on its back.

   Synonym:boohoo

2. Thebasking shark (Cetorhinus maximus).
3. Thequillback (Carpiodes cyprinus).

• Atlantic sailfish (Istiophorus albicans)
• Indo-Pacific sailfish (Istiophorus platypterus).

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• en:Lamniform sharks
• en:Scombroids
• en:Suckers (fish)

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