Hatchet fish

The German common name Beilfische stands for two unrelated groups of bony fish of the Euteleosteomorpha (the name comes from the two common body shape: laterally flattened, with a curved belly and a detached tail stem):

• the deep-sea hatchet family (Sternoptychidae) belongs to the mouth-spined family
• the genus hatchet fish (Pempheris) belongs to the perch relatives

This is a disambiguation page for differentiating between several terms identified with the same word.