FishBase |
Main Ref: | Gomon, M.F. and F.J. Neira 1998 |
max | min | mod | Ref. | |
Length at birth (mm) | ||||
Preanal L. % TL | 48 | 43 |
Place of development | in close association with substrate | |||
Larval area | Victor Harbour, SA | |||
Yolk-sac | Ref: | |||
Yolk | Oil globules | |||
Rows on tail | dorsal + ventral + lateral row | |||
Other melanophores on tail | tail partly covered with melanophores | |||
Melanophores on head + trunk | melanophores on head + trunk | |||
Newly emerged larvae (30 mm) are very slender and have a very small yolk sac. |
Striking feature | tube-like snout | |||
Striking shape lateral | other | dorsal | other | |
Striking feature | tube-like snout | |||
Shape of gut | ||||
Gas bladder early | late | |||
Spinal armature early | late | |||
Pigmentation early | ||||
Rows on tail | dorsal + ventral + lateral row | |||
Other melanophores on tail | tail partly covered with melanophores | |||
Melanophores on head + trunk | melanophores on head + trunk | |||
Pigmentation late | ||||
Rows on tail | dorsal + ventral + lateral row | |||
Other melanophores on tail | tail partly covered with melanophores | |||
Melanophores on head + trunk | melanophores on head + trunk | |||
Urostyle region early | pigmented | late | pigmented | |
Diagnostic characters: body very slender, cylindrical and somewhat S-shaped; head distinctly angled to body axis at birth; anus below dorsal fin origin; numerous large, leaf-like skin flaps on body; no caudal fin; body lightly pigmented, with narrow dark bands encircling tail and dorsal third of thorax. Sequence of fin development: all fin elements (caudal fin absent) formed by birth. Head small, snout much shorter than in adults. Gut moderate. Body rings and ridges initially indistinct, but distinguishable by the short body spines. Dermal appendages become more palmate with growth. |
L 1st feeding | Ref. | Months of presence of larvae | ||||
max | Jan | Feb | Mar | Apr | ||
min | May | Jun | Jul | Aug | ||
mod | Sep | Oct | Nov | Dec |
Water parameters Metric characters |
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