Sternoptychidae

Elongate hatchetfish

Polyipnus elongatus

Seven Centimeters Sternoptychid Fish from the Pacific Ocean

• Tropical
• Continental endemic
• Southern Hemisphere
• Local endemic species
• Restricted distribution
• Marine fish
• Pacific Ocean
• Oceania
• Small
• Tropical fish

Polyipnus elongatus is a species of ray-finned fish in the family Sternoptychidae. It can be found in deep water in the southwestern Pacific Ocean around Australia, at depths down to about 400 metres (1,300 ft).