different between porcupinefish vs blowfish

English

porcupine +? fish

porcupinefish (plural porcupinefishes or porcupinefish)

blow +? fish.

blowfish (plural blowfish or blowfishes)

Any species of fish of the family Tetraodontidae that have the ability to inflate themselves to a globe several times their normal size by swallowing water or air when threatened.
A delicacy popular in Japan, consisting of the fish served raw as sushi or perhaps fried. It may, if improperly prepared, contain considerably deadly levels of neurotoxins.

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