Deepwater Cardinalfish

Body shape similar to chielodipterid fishes, but differs in having 7 spines in the 1st dorsal fin (versus 6 in chielodipterids). Sharp canine teeth present on both jaws. A dark-brown longitudinal stripe runs under the lateral line of midbody but is indistinct at the caudal base.

Distinct pairing during courtship and spawning (Ref. 205).

Dorsal spines (total): 8; Dorsal soft rays (total): 10; Analspines: 2; Analsoft rays: 8

This species is rare in collections because of its deep-water habitat (150-276 m) (Ref. 58472). Solitary, but sometimes seen in pairs or in groups of 3 to 7 fish (Ref. 58472).

Inhabits reef slopes in 70-150 m (Ref. 90102).

fisheries: commercial

分布於印度-太平洋區海域。台灣發現於台東八嗡嗡及屏東後壁湖海域。

通常以下雜魚處理，並無食用經濟價值。

體型類似巨齒天竺鯛屬(/Cheilodipterus/)的魚，區別在於第一背鰭具有7根棘(相對於巨齒天竺鯛屬的6根) ；上下頜皆具銳利的犬齒。身體於側線下中央的部位具有一條深褐色的縱向斑紋，死後不顯著，尾鰭基底另具一條暗褐色橫帶。

主要棲息於礁體斜坡，深度可達150公尺。單獨生活、配對或成一小群生活。以小魚、甲殼類等為食。

Coranthus polyacanthus is a species of cardinalfish native to the Indian Ocean and the western Pacific Ocean. This species grows to a length of 22 centimetres (8.7 in) TL and is of importance to local commercial fisheries. This species is the only known member of its genus.