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eye cirrus a long flapD: flap on 1st spine, elongate blotch at front in malebody: 2 rows ~8 blotches
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eye cirrus simple: long & flat in maleolive, 2 dark bars - eye to mouth & to throatD front spines > rear rays, v elongate in male
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eye cirrus long, branches at base
lower head - blue barscolor & pattern v variable: spotted, striped, all yellowD spot at front