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Teleostei > Acanthuriformes (Surgeonfishes) > Ephippidae (Spadefishes, batfishes and scats)
Etymology: Platax:Greek, platys = flat (Ref. 45335). Eponymy: Major W J A W Boers (d: 1814) was an Infantry officer (later Lieutenant-Colonel) in Gombong, Java. He was later in Leiden, The Netherlands. He was one of many people who supplied Bleeker with specimens from the Dutch East Indies. (Ref. 128868), visit book page. More on author: Bleeker.
背棘 (总数) : 5; 背的软条 (总数) : 31 - 34; 臀棘: 3; 臀鳍软条: 24 - 28. Juveniles have extremely elongate vertical fins and closely resemble juvenile P. teira, but tend to be lighter with a silvery hue. Adults have smoothly rounded head profile like P. orbicularis, but usually have golden hue and lack small black spots (Ref. 37816). Adults (above 18 cm) yellowish silvery, usually with small, scattered black spots on body, dark bar through eye, and another bar just behind head. Median fins yellowish green. Anal-fin margin and rear margin of caudal fin black. Pelvic fins black. Small juveniles yellowish brown or silvery, with 2 black bars as in adults. Rear third of body blackish, the black colour continued onto dorsal and anal fins, and the front of the black zone on body often closely precede by a narrow faint dark bar. Caudal fin transparent except for black base. Jaws with bands of slender, flattened, tricuspid teeth, the middle cusp barely longer than lateral cups (Ref 43039). Body shape (shape guide): short and / or deep. 稚鱼非常地有细长的垂直鳍而且非常近似稚鱼 P. teira, 但是倾向颜色淡的具有一个银色的色。 成鱼有平滑圆形的头部轮廓例如 P. orbicularis, 但是通常有金的色而且缺乏小的黑色斑点.(参考文献 37816) 成鱼 (上方 18 公分) 淡黄色的银色, 通常有小的, 分散的黑色斑点在身体上, 经过眼 , 与另一条横带在头部正后方的深色横带。 中央的鳍淡黄绿色的。 臀鳍边缘与尾鳍黑色的后面边缘。 腹鳍黑色。 小的稚鱼土黄色或银色的, 有两个黑色的横带当当成鱼時。 身體的後面第三黑色的, 黑色的顏色在背鰭與臀鰭之上繼續，而且黑色區域的前面在身體上時常接近地被一條狹窄模糊的深色橫帶之前。 尾鰭透明除了黑色的基底。 頜部有條紋細長的, 平的, 三尖齒, 中央的尖頭幾乎長度超過側面的杯子 (參考文獻 43039).
Adults occur mostly in large schools along drop-offs, including outer reefs; singly in coastal waters. Juveniles are on deep slopes among tall coral formation (Ref. 48637). Benthopelagic (Ref. 58302).
首选温度 (参考文献 123201): 21.3 - 29, mean 28.2 °C (based on 798 cells).
系统发育多样性指数 (参考文献 82804): PD50 = 0.5313 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02818 (0.01180 - 0.06734), b=2.94 (2.74 - 3.14), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (参考文献 69278): 3.5 ±0.3 se; based on size and trophs of closest relatives
回复力 (参考文献 120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
渔业脆弱性 (Ref. 59153): Low to moderate vulnerability (30 of 100). 🛈
