noun
green spotted puffer
A small freshwater/brackish pufferfish, Tetraodon nigroviridis, often kept in aquariums.
ミドリフグは小さくてかわいい観賞魚です。
The green spotted puffer is a small and cute ornamental fish.
Compound of 緑 (midori, 'green') and 河豚 (fugu, 'pufferfish'). The exact derivation is uncertain, but the name refers to its greenish coloration.