Diagnostic Description
provided by Fishbase
Each lateral line scale with 2-4 tubules; without scales on cheek or opercle; without scales basally on dorsal or anal fins; a single pair of stout canines anteriorly in each jaw; a strong canine at corner of mouth; 9th dorsal spine longest, 2.75-3.1 in HL; green with 4 longitudinal salmon pink to orange bands on head, the 2nd and 3rd passing through eye, the 3rd bifurcating on opercle; a small vertically elongate black spot behind eye; upper 3 bands of head continuing as stripes anteriorly on body, and 2 more commencing from beneath pectoral fin, these stripes variously breaking into segments and forming 6 groups of irregular spots dorsally on body, the 2nd group in a dusky blotch; presumed male with this blotch black and containing small irregularly yellow spots; another presumed male phase blackish posteriorly to a vertical through base of 6th dorsal spine.
Life Cycle
provided by Fishbase
Distinct pairing during breeding (Ref. 205).
Morphology
provided by Fishbase
Dorsal spines (total): 9; Dorsal soft rays (total): 12; Analspines: 3; Analsoft rays: 12; Vertebrae: 25
分布
provided by The Fish Database of Taiwan
分布於西北太平洋區,包括台灣及日本。台灣分布於東北部、蘭嶼等岩礁區。
利用
provided by The Fish Database of Taiwan
小型之隆頭魚,體色鮮豔,是適合水族觀賞的魚類,非食用經濟魚種。臺灣分布較稀少。
描述
provided by The Fish Database of Taiwan
體延長,側扁;眼間隔稍突。口端位,稍傾斜;上頜達前鼻孔下方;齒錐狀或尖狀,上下頜各具2犬齒。頭部無鱗,頰部無鱗;背鰭與臀鰭無鞘鱗。D.
IX, 12;A. III, 11-12;P. 14;L.l. 27;G.R.
16-18;背鰭棘部尖硬,後部較前部高;背鰭與臀鰭軟條後部尖形;腹鰭第一棘不延長;尾鰭圓形。體呈綠色;頭部具4條粉紅色至橘色之縱斑,第2及3條貫通眼部,第3條延伸至鰓蓋時分叉為二;眼後另具一垂直之小黑點;頭部上部之3條縱斑輿體側前部之縱帶相連績,其中2條延伸至胸鰭下方;這些縱帶延伸至體背側後部時分裂而成6個不規列的點群,第2點群雜有暗色斑駁。幼、雌魚之背鰭具眼斑。
棲地
provided by The Fish Database of Taiwan
主要棲息於珊瑚礁海域中,水深約2-30公尺左右。夜晚潛沙而眠,白天則出現在獨立礁區或沙地,捕捉有著硬殼的無脊椎動物為食。具性轉變的行為,是屬於先雌後雄型的型態。