Asian sheepshead wrasse (Semicossyphus reticulatus)
Refers specifically to the adult male of this fish species. The female is called 寒鯛 (かんだい).
See also: かんだい
The Asian sheepshead wrasse is a large fish characterized by the bump on its head.
The Asian sheepshead wrasse I caught weighed as much as 10 kilograms.
Rare kanji spelling; the word is normally written in kana.
Compound of こぶ (瘤, 'bump') + だい (鯛, 'sea bream'), referring to the prominent bump on the head of the adult male fish.