Porcupinefish (family Diodontidae) differ from pufferfish (family Tetraodontidae) in that they have large conspicuous spines visible while they are not inflated. The spines of pufferfish are hidden in and against their skin until they expand their bodies. The term blowfish is apllied to both groups.
More info on these fish families:
porcupinefish (family Diodontidae)
https://en.wikipedia.org/wiki/Porcupinefish
pufferfish (family Tetraodontidae)
https://en.wikipedia.org/wiki/Tetraodontidae
ID: 638.13
Captured with Artec Spider 3D Scanner
https://www.artec3d.com/portable-3d-scanners/artec-spider-v2