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Larvae Information Summary for  Gnathophis mystax
( 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)     6  
Preanal L. % TL        
Place of development planktonic
Larval area Eastern Atlantic and Mediterranean
Yolk-sac       Ref:  
Yolk segmented Oil globules no oil globule
Rows on tail no rows
Other melanophores on tail no other melanophores
Melanophores on head + trunk no melanophores on head or trunk
No teeth or pigment.
Post larvae
Striking feature teeth clearly visible
Striking shape lateral eel-like dorsal compressed
Striking feature teeth clearly visible
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 no other melanophores
Melanophores on head + trunk melanophores on head
Pigmentation late
Rows on tail no rows
Other melanophores on tail tail with single melanophore
Melanophores on head + trunk melanophores on head
Urostyle region   early pigmented late pigmented
Peritoneum covered with melanophores
Pectorals normal  
Pelvics normal (i.e. small or absent)  
At 8.5 mm, only several melanophores at the tail tip. 3 teeth in each jaw. 133-145 myomeres, including 50-59 preanal myomeres. Postlarvae 133-139 myomeres.
  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
Entered by: Papasissi,Christine - 29.10.90
Modified by: Luna,Susan M. - 23.08.02
Checked by: Giovanardi,Otello - 15.02.91
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