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Pacific Ocean: Indonesia to Samoa, north to Ryukyu Islands, south to New Caledonia and the Rowley Shoals in the eastern Indian Ocean (Ref. 1602) and Christmas Island (Ref. 114977). 太平洋: 印度尼西亚到美属萨摩亚, 北至琉球群岛, 南至罗雷游入东印度洋与新加勒多尼亚。
大小 / 重量 / 年龄
成熟度: Lm? range ? - ? cm Max length : 20.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 9710)
背棘 (总数) : 10; 背的软条 (总数) : 16 - 18; 臀棘: 3; 臀鳍软条: 6 - 7. Highly variable in color and also in the size of the pale blotch (looks blue in natural light). Latter varied from being totally absent to an area almost half the body size, especially when showing nuptial colors. At the Rowley Shoals, off the north-western Australian coast, it only shows the blotch when nuptial (Ref. 48635).
Body shape (shape guide): fusiform / normal; Cross section: compressed. 高变异的颜色以及在灰白斑块的大小中.(容貌蓝色的在自然光线下) 比较后者的从在完全地不存在到一个区域几乎改变一半的身体大小, 尤其当显现求偶的颜色时。 在罗雷浅滩, 外海的西北方的澳大利亚海岸, 它只显示斑块 , 当求偶的时候.(参考文献 48635)
Aggregations of this species occur a few meters above the edges of current-swept drop-offs (Ref. 4538). Females and males in separate aggregations or mixed sexes (Ref. 48635). Juveniles solitary and remain close to shelter (Ref. 37816). Seldom encountered in the aquarium trade (Ref. 1602).
