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) | 18 | 6733 | ||
Preanal L. % TL |
Place of development | attached to parental body | |||
Larval area | to be filled | |||
Yolk-sac | Ref: | |||
Yolk | Oil globules | more than one oil globule | ||
Rows on tail | no rows | |||
Other melanophores on tail | more than two dorso-ventral clusters or bands | |||
Melanophores on head + trunk | melanophores on head + trunk | |||
Snout concave and not very long. At the apex of snout jaws strongly prominent. |
Striking feature | tube-like snout | |||
Striking shape lateral | eel-like | dorsal | ||
Striking feature | tube-like snout | |||
Shape of gut | tube-like | |||
Gas bladder early | late | |||
Spinal armature early | no spines | late | no spines | |
Pigmentation early | ||||
Rows on tail | no rows | |||
Other melanophores on tail | more than two dorso-ventral clusters or bands | |||
Melanophores on head + trunk | melanophores on head + trunk | |||
Pigmentation late | ||||
Rows on tail | no rows | |||
Other melanophores on tail | more than two dorso-ventral clusters or bands | |||
Melanophores on head + trunk | melanophores on head + trunk | |||
Urostyle region early | pigmented | late | pigmented | |
Peritoneum | covered with melanophores | |||
Pectorals | normal without melanophores | |||
Pelvics | normal (i.e. small or absent) | |||
Five postanal dark transverse stripes. At advanced larval stages very marked reliefs of the bony rings. 38-44 dorsal rays, extending over 12-15 segments, longer than the head, 3 anal, 13-15 pectoral and 10 caudal rays. |
max | min | mod | Ref. | |
Total number of myomeres | 69 | 64 | 67 | |
Preanal number of myomeres | 18 | 17 | 18 |
L 1st feeding | Ref. | Months of presence of larvae | ||||
max | Jan | Feb | Mar | Apr | ||
min | May | Jun | Jul | Aug | ||
mod | 18 | Sep | Oct | Nov | Dec |
Water parameters Metric characters |
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