Dichichthyidae

Roughback Bristle Shark

Dichichthys satoi

A gravid female ate whiptail and octopus

• Tropical
• Southern Hemisphere
• Regional distribution
• Marine fish
• Pacific Ocean
• Oceania
• Large
• Tropical fish

The roughback bristle shark (Dichichthys satoi) is a species of bristle shark of the newly discovered Dichichthyidae family, and was discovered in 2024. The species can reach a length of 1.05 m (3 ft 5 in). The roughback bristle shark lives off the waters of New Zealand, at a depth of between 2,200 and 3,900 ft (670 and 1,190 m).