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Larvae Information Summary for
Tetragonurus cuvieri
| Main Ref: | Bertolini, F., U. D'Ancona, E. Padoa Montalenti, S. Ranzi, L. Sanzo, A. Sparta, E. Tortonese and M. Vialli 1956 | |||
Yolk-sac larvae
| max | min | mod | Ref. | |
| Length at birth (mm) | 4.1 | 265 | ||
| Preanal L. % TL |
| Place of development | planktonic | |||
| Larval area | Northwestern Pacific (Japan) | |||
| Yolk-sac | Ref: | |||
| Yolk | Oil globules | |||
| Rows on tail | ||||
| Other melanophores on tail | ||||
Post larvae
| Striking feature | none | |||
| Striking shape lateral | normal (not striking) | dorsal | normal (not striking) | |
| Striking feature | none | |||
| Shape of gut | elongated | |||
| Gas bladder early | late | |||
| Spinal armature early | no spines | late | opercular spines only | |
| Pigmentation early | ||||
| Rows on tail | dorsal + lateral + 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 + lateral + 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 | normal (i.e. small or absent) | |||
| At 13.4 mm the number of finrays: D 13;A 11. At 18mm: 1st D 18, 2nd D 12; A 12-13; C 19; P 12-13; ventral not yet appeared. | ||||
| L 1st feeding | Ref. |
Months of presence of larvae
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| max | Jan | Feb | Mar | Apr | ||
| min | May | Jun | Jul | Aug | ||
| mod | Sep | Oct | Nov | Dec | ||
| Water parameters Metric characters |
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