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Dieren en planten

Fish   Sharks   Greenland shark   Basking shark   Tope   Smooth hound   Fish biology   Reproduction of fish   Nurseries   

Mens en Milieu

Water   Seawater   

Smooth hound


up to 165 centimeters


up to 15 kilograms


gray with lighter sides and yellow-white belly


up to around 24 years


crabs, shellfish and fish


other sharks


live birth (viviparous)
maturity: between 12-15 years
number: 4-17 young per nest

  • Dut: Gladde haai (Toonhaai, Zandhaai)
  • Lat: Mustelus mustelus
  • Eng: Smooth hound
  • Ger: Glatthai
  • Dan: Glathaj
Smooth hound, Ecomare, Peter van der Wolf

Smooth hound

Smooth hounds are harmless ground sharks. They teeth aren't even sharp, but instead are flat crowned teeth. These teeth are great at finely grinding their food, such as crabs, shellfish and other fish, before swallowing. The number of smooth hounds in the North Sea has increased in the past thirty years, while other shark species have declined in the same period. Smooth hounds are named after their habit to gather in large groups, like a pack of dogs (or hounds).

  • Distribution and habitat
    Distribution of smooth hounds, Ecomare

    Smooth hounds live close to the coast. They are found in the northeastern Atlantic Ocean, including the North Sea. However, they are rarely seen along the Dutch coast. In recent years, anglers have been catching (and releasing) smooth hounds more regularly and dead smooth hounds have been stranding on the beach more often. In August 2015, participants of an excursion found one on Schiermonnikoog, while a few weeks later one washed ashore on Texel.