Main Ref: | Russell, F.S. 1976 |
min | max | mod | Ref. | |
Length at birth (mm) | 2.5 | 3 | 2.8 | 65 |
Preanal L. % TL | 43.5 | 65 |
Place of development | planktonic | |||
Larval area | Eastern Atlantic and Mediterranean Sea | |||
Yolk-sac | spherical | Ref: | ||
Yolk | unsegmented | Oil globules | more than one oil globule | |
Rows on tail | ventral row | |||
Other melanophores on tail | tail with single melanophore | |||
Melanophores on head + trunk | melanophores on head + trunk | |||
One single dorsal melanophore. |
Striking feature | none | |||
Striking shape lateral | normal (not striking) | dorsal | normal (not striking) | |
Striking feature | none | |||
Shape of gut | elongated | |||
Gas bladder early | pigmented | late | pigmented | |
Spinal armature early | no spines | late | no spines | |
Pigmentation early | ||||
Rows on tail | ventral row | |||
Other melanophores on tail | tail with single melanophore | |||
Melanophores on head + trunk | melanophores on head + trunk | |||
Pigmentation late | ||||
Rows on tail | dorsal + lateral + ventral row | |||
Other melanophores on tail | tail with single melanophore | |||
Melanophores on head + trunk | melanophores on head + trunk | |||
Urostyle region early | unpigmented | late | pigmented | |
Peritoneum | covered with melanophores | |||
Pectorals | normal without melanophores | |||
Pelvics | strikingly large or elongated | |||
One large ramified melanophore about midway on the ventral and dorsal contour. At 7-8 mm the rays ofthe second dorsal and the anal fins are developed. As in other Gobiidae, the gas bladder appears very early in the development, approx. at 3.0 mm. |
min | max | mod | Ref. | |
Total number of vertebrae | 27 | 29 | 28 | 65 |
L 1st feeding | Ref. | Months of presence of larvae | ||||
max | 4.5 | Jan | Feb | Mar | Apr | |
min | 4 | May | Jun | Jul | Aug | |
mod | 4.2 | Sep | Oct | Nov | Dec |
Water parameters Metric characters |