5a. First to fifth dorsal fin rays progressively longer, proximal part of dorsal fin gradually sloping when erect; caudal fin with distinct, sometimes obscure black ocellus, occasionally absent.
b. First dorsal fin ray slightly shorter than second, others subequal to second, no slope obvious at proximal part of dorsal fin when erect; caudal fin never with black ocellus.
Back to start of the adults key. ToC.
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