Dalatiidae

largetooth cookiecutter shark

Isistius plutodus

Nineteen rows of lower teeth dwarf its body

• Tropical
• Northern Hemisphere
• Regional distribution
• Marine fish
• Atlantic Ocean
• Pacific Ocean
• East Asia
• North America
• Oceania
• South America
• Elongated
• Medium
• Tropical fish

The largetooth cookiecutter shark (Isistius plutodus) is a rare species of squaliform shark in the family Dalatiidae, reported from depths of 60–200 m (200–660 ft) at scattered locations in the Atlantic and Pacific Oceans. As its common name suggests, it is similar in appearance to the cookiecutter shark (I. brasiliensis) but has much larger lower teeth. This species reaches a maximum known length of 42 cm (17 in).