| Main Ref: | Hermes, R. 1987 | |||
| min | max | mod | Ref. | |
| Length at birth (mm) | ||||
| Preanal L. % TL |
| Place of development | planktonic | |||
| Larval area | Northwest Pacific (Taiwan, 20-22°N and southern Sea of Japan) | |||
| Yolk-sac | Ref: | |||
| Yolk | Oil globules | |||
| Melanophores on head + trunk | melanophores on trunk | |||
| Striking feature | duck-billed shape of head | |||
| Striking shape lateral | eel-like | dorsal | compressed | |
| Striking feature | duck-billed shape of head | |||
| Shape of gut | tube-like | |||
| Gas bladder early | late | |||
| Spinal armature early | late | |||
| Melanophores on head + trunk | melanophores on trunk | |||
| Pectorals | normal | |||
| From 18 mm, presence of a series of conspicuous midlateral pigment spots beginning posterior to the origin of the pectoral fins. | ||||
| 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 |