Photos about porcupinefishes (Diodontidae); including porcupinefish larvae and juveniles: Porcupinefish larva - 12.3 mm TL. Papua New Guinea.Porcupinefish larva -12.3 mm TL. Papua New Guinea.A 34 day old cultured juvenile porcupine fish (Diodon holocanthus) - obviously upset about being in a photo tank. It’s amazing porcupinefish have spines and can inflate their body at such a small size (3/4").Cultured porcupinefish (Diodontidae) larva; 14 dph; 4.3 mm. Hawaii.Spanish hogfish (Bodianus rufus) cleaning a spiny balloonfish (Diodon holocanthus). Bahamas.Adult spiny porcupinefish (Diodon holocanthus) on a reef in Indonesia.