Galeorhinus galeus is a hound shark of the family Triakidae, the only member of the genus Galeorhinus, found worldwide in subtropical seas at depths of up to 550 metres (1,800 ft). It grows to 2 metres (6 ft 7 in) long. Reproduction is ovoviviparous.
School sharks are dark bluish gray on the back (dorsal) side, and white on their bellies (ventral side). Mature sharks range from 135-175 cm for males, and 150-195 cm for females.
The meat of the school shark is consumed in Spanish cuisine where it is usually known as cazón. Among recipes are the traditional cazón en adobo in the mainland, and tollos in the Canary Islands. In Mexican cuisine, the term cazón refers to other species, and is prepared similarly.
In 2010, Greenpeace International added the school shark to its seafood red list. "The Greenpeace International seafood red list is a list of fish that are commonly sold in supermarkets around the world, and which have a very high risk of being sourced from unsustainable fisheries."
- "Galeorhinus galeus (Liver-oil Shark, Miller’s Dog, Oil Shark, Penny Dog, Rig, School Shark, Snapper Shark, Soupfin, Soupie, Southern Tope, Sweet William, Tiburon, Tope, Toper, Tope Shark, Vitamin Shark, Whithound)". Iucnredlist.org. 2005-06-17. Retrieved 2013-03-26.
- "Galeorhinus galeus, Tope shark : fisheries, gamefish, aquarium". Fishbase.org. 2012-07-03. Retrieved 2013-03-27.
- "Fish Bulletin No. 64. The Biology of the Soupfin Galeorhinus zyopterus and Biochemical Studies of the Liver [eScholarship]". Repositories.cdlib.org. Retrieved 2013-03-26.
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