Tetraodontiformes

Tetraodontiformes are an order of ray-finned fish, also called the Plectognathi. Sometimes these are classified as a suborder of the Perciformes. Various bizarre forms are included here:

• Balistidae (triggerfishes)
• Monacanthidae (filefishes)
• Ostraciidae (boxfishes)
• Tetraodontidae (pufferfishes)
• Diodontidae (porcupinefishes)
• Molidae (marine sunfish)