| tube-like snout |
| eel-like |
|
| tube-like snout |
| tube-like |
| |
|
| |
|
| ventral row |
| tail partly covered with melanophores |
| melanophores on head + trunk |
| ventral row |
| tail partly covered with melanophores |
| melanophores on head + trunk |
| normal without melanophores |
| fin rays only without melanophores |
| Myomeres 44-47+30-32=74-78 (usually 46+30); dorsal fin rays 17-20, anal fin rays 16-19 (all present by about 20 mm); usually no hypobranchial pigment and little or no basibranchial pigment before 10 mm; compared with F. commersonii, more robust, notochord flexion and fin development begin at slightly smaller size.
Pigmentation:
Yolk-sac-postflexion: laterally on dentary; on lower margin of preopercle; on branchiostegal membrane; double row from tip of lower jaw along gular membrane and isthmus continuing along sides of gut; none to few on caudal finfold; on basibranchials and hypobranchials between 8-10 mm (usually none on hypobranchial before 10 mm); internally on hindbrain by 12 mm; on elongate central caudal fin rays by 12 mm; present or absent along anal fin base and on anal finfold after about 12 mm.
Sequence of fin development: caudal, dorsal and anal, pectorals, pelvics. |
