| FishBase |
| Main Ref: | Gomon, M.F. and F.J. Neira 1998 | |||
| max | min | mod | Ref. | |
| Length at birth (mm) | ||||
| Preanal L. % TL | 31 | 21 |
| Place of development | ||||
| Larval area | Swan Estuary (WA) | |||
| Yolk-sac | Ref: | |||
| Yolk | Oil globules | |||
| Rows on tail | ||||
| Other melanophores on tail | ||||
| Striking feature | tube-like snout | |||
| Striking shape lateral | other | dorsal | other | |
| Striking feature | tube-like snout | |||
| Shape of gut | elongated | |||
| Gas bladder early | pigmented | late | pigmented | |
| Spinal armature early | several different spines | late | several different spines | |
| Pigmentation early | ||||
| Rows on tail | ventral 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 row | |||
| Other melanophores on tail | tail partly covered with melanophores | |||
| Melanophores on head + trunk | melanophores on head + trunk | |||
| Urostyle region early | pigmented | late | pigmented | |
| Peritoneum | with row of melanophores | |||
| Pectorals | normal | |||
| Pelvics | other | |||
| Diagnostic characters: body extremely slender and cylindrical; head with a short, tubular snout, and a small, flap-like mouth; short-based dorsal fin, originating on tail rings 5-9, well posterior to anus; caudal fin present; body lightly pigmented, with a pale vertical band on each body ring. Sequence of fin development: dorsal and caudal fins are complete at birth; anal fin bud first noticeable by 15 mm, fully formed after 22 mm; pectoral fin rays start to develop by 13 mm. Newly emerged larvae (9.5 mm) are very elongate and slender. Head small, snout elongate. Smallest larva has a low supraoccipital and otic crest, but no median dorsal snout ridge. Gut short to moderate, straight. Gas bladder conspicuous and inflated. Larvae have been caught in Western Australia, in the Swan and Nornalup-Walpole estuaries, and the Wilson Inlet during most months, with peak abudances between October and April (Ref. 33820, 33834, 33835), and in New South Wales entering and within Lake Macquarie in all months except August (Ref. 33621). | ||||
| 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 |
| Back to Search |