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Common thresher

Alopias vulpinus

  • Sharks and rays
  • IUCN: Vulnerable
  • Usual depth2–16 m
  • Water temperature11–29 °C
  • Best monthsAugust and September
  • How commonCommon
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Photo credit: (c) alicia penney, some rights reserved (CC BY) · CC BY · iNaturalist

About this species

The common thresher, also known as Atlantic thresher, is the largest species of thresher shark, family Alopiidae, reaching 6 m (20 ft) in length. About half of its length consists of the elongated upper lobe of its caudal fin. With a streamlined body, short pointed snout, and modestly sized eyes, the common thresher resembles the pelagic thresher. It can be distinguished from the latter species by the white of its belly extending in a band over the bases of its pectoral fins. The common thresher is distributed worldwide in tropical and temperate waters, though it prefers cooler temperatures. It can be found both close to shore and in the open ocean, from the surface to a depth of 550 m (1,800 ft). It is seasonally migratory and spends summers at lower latitudes.

Text from the Wikipedia article “Common thresher”, licensed CC BY-SA 4.0. Read the article

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

  • January: 19 records
  • February: 21 records
  • March: 24 records
  • April: 25 records
  • May: 24 records
  • June: 289 records
  • July: 2,217 records
  • August: 8,653 records
  • September: 10,275 records
  • October: 5,841 records
  • November: 1,703 records
  • December: 509 records

Depth and water temperature

Depth

Mostly recorded at 2–16 m · Deepest record: 456.5 m

  • 0–10 m: 13,296 records
  • 10–20 m: 7,769 records
  • 20–30 m: 443 records
  • 30–40 m: 22 records
  • 40–50 m: 18 records
  • 50–60 m: 10 records
  • 60–70 m: 4 records
  • 70–80 m: 2 records
  • 80–90 m: 3 records
  • 90–100 m: 1 records
  • 100–110 m: 1 records
  • 110+ m: 8 records

Water temperature

Recorded in surface water of 11–29 °C

  • 10–12 °C: 38 records
  • 12–14 °C: 404 records
  • 14–16 °C: 486 records
  • 16–18 °C: 17 records
  • 18–20 °C: 0 records
  • 20–22 °C: 0 records
  • 22–24 °C: 0 records
  • 24–26 °C: 0 records
  • 26–28 °C: 1 records
  • 28–30 °C: 2 records

Names and classification

English
Common thresher, Fox shark, Long-tailed shark, Sea ape, Sea fox, Slasher, Atlantic Thresher, Big-eye Thresher, Bigeye Thresher, common thresher, Common Thresher, Common Thresher Shark, fox shark, Fox Shark, Grayfish, Green Thresher, long-tailed shark, Pelagic Thresher, sea ape, sea fox, Sea Fox, slasher, Swingletail, Swiveltail, Swivetail, thintail thresher, Thintail Thresher, Thrasher, thrasher shark, thresher, Thresher, thresher shark, Thresher Shark, Thresher shark or Bigeye thresher, Thresher, Thintail thresher, Thresher Shark, tresher, Tresher Shark, Tresher Shark, Tresher, Whip-tailed Shark, whiptail shark
Names in 4 more languages
German
Drescher, Drescherhai, Fuchshai, Gemeiner Fuchshai, Gewöhnlicher Fuchshai, Langschweif, Seefuchs
Spanish
Azotador, Chichi espada, Coleto, Coludo, Coludo Pinto, Grillo, Guadaña, peix espasa, Pejerrabo, Peje sable, Peje zorra, Peje zorro, Pez espada, Pez palo, pez zorro, Pez zorro, Pichirata, Rabo de zorra, rabosa, Raposa, Raposa marina, Tiburón pez zorro, Tiburón ratón, Tiburón zorro, tiburón zorro común, zorra de mar, zorro, zorro blanco
French
Faux, la faux, Loup de mer, péi aspasu ratou, Pèis rato, poisson épée, Poisson-épée, renard, Renard, renard de mer, Renard de mer, renard marin, Renard, Renard de mer, Requin renard, Requin renard commun, Requin-renard commun, singe de mer, Singe de mer, Thon blanc, touille à l'épée
Japanese
ma-onaga, Mao-naga, Maonaga, nadebuka, nezumezame, onagazame, マオナガ

Other scientific names: Alopecias barrae, Alopecias chilensis, Alopecias longimana, Alopecias vulpes, Alopias caudatus, Alopias greyi, Alopias macrourus, Alopias vulpes, Carcharias vulpes, Galeus vulpecula, Squalus alopecias, Squalus vulpes, Squalus vulpinus, Vulpecula marina

Similar species

Sources and credits

Names and taxonomy: WoRMS (CC BY 4.0) and the GBIF Backbone (CC BY 4.0). Photos: iNaturalist observers, each under the licence shown (CC0, CC BY or CC BY-SA).

  • Depth, temperature, months and maps: records from OBIS and GBIF under CC0 or CC BY.
  • Descriptions: Wikipedia, licensed CC BY-SA, each linked to its article.
  • Conservation status as published by GBIF (IUCN Red List).
  • 72,648 open-data records from 1788 to 2024.
  • Species data updated October 31, 2026.

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