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Temporal range: Paleocene–present[1]
Leopard shark in kelp.jpg
Leopard shark (Triakis semifasciata)
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Order: Carcharhiniformes
Family: Triakidae
Genus: Triakis
J. P. Müller & Henle, 1838
Type species
Triakis scyllium
J. P. Müller & Henle, 1839

Triakis is a genus of houndsharks in the family Triakidae.[2] The name comes from the Greek word τρι, tri meaning "three", and the Latin word acis meaning "sharp" or "pointed", in reference to the three-pointed teeth of these sharks.


Image Common Name Scientific name Distribution
T. acutipinna Kato, 1968 sharpfin houndshark coastal waters of Ecuador
T. maculata Kner & Steindachner, 1867 spotted houndshark eastern Pacific Ocean off the coast of South America
Triakis megalopterus2.jpg T. megalopterus A. Smith, 1839 sharptooth houndshark shallow inshore waters from southern Angola to South Africa.
Triakis scyllium himeji.jpg T. scyllium J. P. Müller & Henle, 1839 banded houndshark northwestern Pacific Ocean from the southern Russian Far East to Taiwan
Triakis semifasciata SI3.jpg T. semifasciata Girard, 1855 leopard shark Pacific coast of North America, from the U.S. state of Oregon to Mazatlán in Mexico

See also[edit]


  1. ^ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Chondrichthyes entry)". Bulletins of American Paleontology. 364: 560. Archived from the original on 2011-09-30. Retrieved 2008-01-09.
  2. ^ Froese, Rainer and Pauly, Daniel, eds. (2011). Species of Triakis in FishBase. February 2011 version.