Temporal range: Paleocene–Recent
|Leopard shark (Triakis semifasciata)|
J. E. Gray, 1851
Houndsharks are a family, Triakidae, of ground sharks, consisting of about 40 species in 9 genera. In some classifications, the family is split into two subfamilies, with Mustelus, Scylliogaleus, and Triakis in subfamily Triakinae, and the remaining genera in subfamily Galeorhininae.
Houndsharks are distinguished by possessing two large spineless dorsal fins, an anal fin, and oval eyes with nictitating eyelids. They are small to medium in size, ranging from 37 to 220 cm (1.21 to 7.22 ft) in adult length. They are found throughout the world in warm and temperate waters, where they feed on fish and invertebrates on the seabed and in midwater.
- Furgaleus Whitley, 1951
- Galeorhinus Blainville, 1816
- Gogolia Compagno, 1973
- Hemitriakis Herre, 1923
- Hypogaleus J. L. B. Smith, 1957
- Iago Compagno & Springer, 1971
- Mustelus H. F. Linck, 1790
- Scylliogaleus Boulenger, 1902
- Triakis J. P. Müller & Henle, 1839
- Froese, Rainer, and Daniel Pauly, eds. (2005). "Triakidae" in FishBase. November 2005 version.
- Cladogram reference