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Larvae Information Summary for  Symphodus roissali
( not available )

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)     3  
Preanal L. % TL     51.2  
Place of development planktonic
Larval area Mediterranean
Yolk-sac ovoid   pigmented Ref:  
Yolk unsegmented Oil globules no oil globule
Rows on tail no rows
Other melanophores on tail tail with single melanophore
Melanophores on head + trunk melanophores on trunk
Stellate chromatophores. On ventral primordial fin small melanophores.
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  
Pigmentation early
Rows on tail ventral row
Other melanophores on tail tail with single melanophore
Melanophores on head + trunk melanophores on trunk
Peritoneum covered with melanophores
Pectorals normal  
Pelvics normal (i.e. small or absent)  
Meristic characters
  max min mod Ref.
Total number of myomeres 33 33 33  
Preanal number of myomeres 18 15 16  
  L 1st feeding Ref. Months of presence of larvae    Ref. 
max     Jan Feb Mar Apr
min   May Jun Jul Aug
mod 3.2   Sep Oct Nov Dec
Water parameters     Metric characters
Entered by: Papasissi,Christine - 29.10.90
Modified by: Luna,Susan M. - 17.07.02
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