What is the family designation for porcupinefish, which are relatives of pufferfish within the same order?

Answer

Diodontidae

Porcupinefish belong to the family Diodontidae, which is distinct from Tetraodontidae but shares the same broader order, Tetraodontiformes.

What is the family designation for porcupinefish, which are relatives of pufferfish within the same order?
classificationfishgrouppufferfish