FishBase |
Main Ref: | Bertolini, F., U. D'Ancona, E. Padoa Montalenti, S. Ranzi, L. Sanzo, A. Sparta, E. Tortonese and M. Vialli 1956 |
max | min | mod | Ref. | |
Length at birth (mm) | ||||
Preanal L. % TL |
Place of development | planktonic | |||
Larval area | to be filled | |||
Yolk-sac | ovoid pigmented | Ref: | ||
Yolk | unsegmented | Oil globules | one oil globuleposteriorventralpigmented | |
Rows on tail | ventral row | |||
Other melanophores on tail | tail partly covered with melanophores | |||
Melanophores on head + trunk | melanophores on head + trunk | |||
Striking feature | duck-billed shape of head | |||
Striking shape lateral | normal (not striking) | dorsal | normal (not striking) | |
Striking feature | duck-billed shape of head | |||
Shape of gut | triangular | |||
Gas bladder early | late | |||
Spinal armature early | no spines | late | no spines | |
Pigmentation early | ||||
Rows on tail | ventral row | |||
Other melanophores on tail | one dorso-ventral cluster or band | |||
Melanophores on head + trunk | melanophores on trunk | |||
Pigmentation late | ||||
Rows on tail | no rows | |||
Other melanophores on tail | tail with single melanophore | |||
Melanophores on head + trunk | melanophores on trunk | |||
Urostyle region early | unpigmented | late | unpigmented | |
Peritoneum | covered with melanophores | |||
Pectorals | strikingly large without melanophores | |||
Pelvics | normal (i.e. small or absent) | |||
Asymmetrical pectoral fins with 14 rays at 7mm. Caudal fin asymmetrical; ventral fins still rudiment. At 10mm 1st dorsal fin 9(10) rays; 2nd D 15. Distinguishing characters: Anal and dorsal fins with 15 rays and not with 16 as in Triglidae. |
max | min | mod | Ref. | |
Total number of vertebrae | 32 | 30 | 31 | 263 |
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 |