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snout v long, flatD1 very long & low, origin over pectoral base
D2 shorter, higher & longer spinetail base: no ventral keeldenticle crown: ~0.5 mmm long -
snout v long, flatD1 short, high, origin over inner pectoral margin
D2 shorter, higher & longer spinedenticle crown: ~0.25 mmm longunder tail base: keel