lower jaw strongly projecting |
short and/or deep |
compressed |
lower jaw strongly projecting |
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dorsal row |
tail partly covered with melanophores |
melanophores on head + trunk |
dorsal row |
tail partly covered with melanophores |
melanophores on head + trunk |
pigmented |
pigmented |
covered with melanophores |
fin rays only |
fin rays only |
Diagnostic characters: lower jaw slightly projected beyond upper jaw; dorsal fin directly opposite anal fin; body heavily pigmented; expanded melanophore at base of caudal-fin rays.
Sequence of fin development: caudal prior to hatching; anal (<6.4-11.2 mm); dorsal (<6.4-11.2 mm); pelvic 18.5-23.1 mm); pectoral (12.0-17.8 mm).
Body elongate, initially cylindrical, laterally compressed with development. Head moderate. Lower jaw robust, projecting slightly beyond upper jaw. Gut long to very long. Prominent preanal membrane extending from about midgut to anus until 22.0 mm. Scales form between 17.8 and 25.2 mm. |