Hayashi'S Cardinalfish

Translucent when fresh with a reddish cast, overlaid with iridescence particularly on abdomen and operculum predominated by golden hues; dusky caudal fin with hyaline border; 1st and 2nd dorsal and anal fin pale to dusky or blackish, other fins are clear with pink rays. Anterior nostril without long flap. Rhomboid caudal fin. 23-24 scales in longitudinal series. Gill rakers 4-5+11-13, 1-7 developed. Convex interorbital space. Oblique mouth. Predorsal scales 10 (9-11). This species resembles P. amblyuroptera and P. gelatinosa but has larger scales (LR

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

Dorsal spines (total): 7; Dorsal soft rays (total): 8; Analspines: 2; Analsoft rays: 7 - 8; Vertebrae: 24

Found inshore (Ref. 75154). Inhabits lagoon and seaward reefs; hides in small caves and under ledges (Ref. 526).

Inhabits lagoon and seaward reefs; hides in small caves and under ledges. Solitary and usually seen at night (Ref 90102).

分布於印度-太平洋區，西起亞丁灣，東至薩摩亞，北至台灣、日本，南迄西澳洲。台灣分布於蘭嶼海域。

無任何經濟價值。

體延長。前鰓蓋骨邊緣平滑。前鼻孔之瓣膜短。有犬齒和絨毛狀齒，上頜骨延伸至眼後。尾鰭尖形。體大圓鱗，易脫落；側線不完全。D. VI-I，8；A. II，8；P. 15-17；GR. 1+7；Ll. 19-25；BD. 3.90-4.25 in SL。體半透明而略帶紅色，鱗片上具褐色斑駁；腹部及鰓蓋具金黃色澤。第一、第二背鰭及臀鰭淡色至略呈暗色或黑色；尾鰭暗色，上下緣末端淡色；餘鰭淡色而略帶粉紅。

主要棲息於潟湖及面海的珊瑚礁區。以浮游動物或其它底棲無脊椎動物為食。

Pseudamia hayashii, commonly known as Hayashi's cardinalfish, is a species of cardinalfish native to the Indian and Pacific Oceans frpm the Gulf of Aden to Samoa, north to southern Japan and south to Western Australia. The specific name honours the Japanese ichthyologist Masayoshi Hayashi, a curator at the Yokosuka City Museum, who has studied the cardinalfishes of Japan and who lent a specimen of P. hayashi on learning of the authors' research on the genus Pseudamia.