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 Triakidae
HOUNDSHARKS
Smoothhound sharks

Life   Vertebrata   Fish

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Mustelus henlei
© Copyright Ross Robertson, 2006 · 12
Mustelus henlei		 Mustelus mento
© Copyright Ross Robertson, 2006 · 12
Mustelus mento

Mustelus
© Copyright Ross Robertson, 2006 · 12
Mustelus		 Mustelus whitneyi
© Copyright Ross Robertson, 2006 · 12
Mustelus whitneyi

Galeorhinus galeus
© Copyright Ross Robertson, 2006 · 12
Galeorhinus galeus		 Mustelus henlei
© Copyright Photographer/SFTEP, 2002 · 0
Mustelus henlei

Mustelus mento
© Copyright Photographer/SFTEP, 2002 · 0
Mustelus mento		 Mustelus lunulatus
www.fao.org Copyright Michel Lamboeuf · 0
Mustelus lunulatus

Mustelus californicus
© Copyright Photographer/SFTEP, 2002 · 0
Mustelus californicus		 Mustelus henlei
© Copyright Photographer/SFTEP, 2002 · 0
Mustelus henlei

Mustelus lunulatus
© Copyright Photographer/SFTEP, 2002 · 0
Mustelus lunulatus		 Mustelus californicus
www.fao.org Copyright Michel Lamboeuf · 0
Mustelus californicus

Mustelus dorsalis
www.fao.org Copyright Michel Lamboeuf · 0
Mustelus dorsalis		 Mustelus henlei
www.fao.org Copyright Michel Lamboeuf · 0
Mustelus henlei
español

Overview
Main identification features
  • eye oval
  • 1st dorsal fin above pectoral
  • 2nd dorsal fin large, origin before anal fin origin
  • gill slits: 5, 2 over pectoral
  • anal fin small
  • tail fin asymmetric
FAMILY TRIAKIDAE

HOUND SHARKS, SMOOTH-HOUND SHARKS, TOPE SHARKS

This is one of the largest shark families, with 9 genera and approximately 38 species inhabiting tropical and temperate seas. Triakids are small to moderate-sized sharks (up to about 200 cm) characterized by a rather slender body, a long, pointed snout (when viewed from the side), horizontally oval eyes, and a long, angular or arched mouth that reaches past the front margin of the eye. They lack nasal barbels and there are no spines in front of the dorsal and anal fins. The teeth are highly variable, ranging from low molars to more typical shark-like teeth that are bladelike or cuspidate. Houndsharks are generally seen close to the bottom, ranging from coastal shallows to depths in excess of 2000 m. Many of the species are mainly active at night, feeding primarily on crustaceans, cephalopods, and fishes. None of the species are considered harmful. A total of 10 described species in 3 genera occur in the eastern Pacific, 6 of which belong to the genus Mustelus, commonly known as Smooth-hounds. The Leopard Shark (Triakis semifasciatus), a popular resident in California public aquaria, is a member of this family.


References
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Acknowledgements

I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.


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