Larvae Information Summary for Ophidion barbatum
( 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
  min max mod Ref.
Length at birth (mm)     3  
Preanal L. % TL     46.8  
Place of development planktonic
Larval area to be filled
Yolk-sac ovoid   pigmented Ref:  
Yolk unsegmented Oil globules no oil globule
Rows on tail dorsal + ventral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on head + trunk
Small spots of melan. around the primordial fin. 64-66 myomeres and 16-17 preanal ones.
Post larvae
Striking feature other
Striking shape lateral eel-like dorsal  
Striking feature other
Shape of gut elongated
Gas bladder   early visible late  
Spinal armature   early no spines late no spines
Pigmentation early
Rows on tail dorsal + ventral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on head + trunk
Pigmentation late
Rows on tail dorsal + 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 4.0mm small spots of melan. on primordial fin, 64-66 segments. At 25mm: D 140; A 120.
Meristic characters
  min max mod Ref.
Total number of myomeres 63 66 64  
Preanal number of myomeres 16 17 16  
  L 1st feeding Ref. Months of presence of larvae
max     Jan Feb Mar Apr
min   May Jun Jul Aug
mod 4   Sep Oct Nov Dec
Water parameters     Metric characters
Comments & Corrections

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