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Larvae Information Summary for  Chlorophthalmus agassizi
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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)        
Preanal L. % TL        
Place of development planktonic
Larval area to be filled
Yolk-sac       Ref:  
Yolk   Oil globules  
Rows on tail  
Other melanophores on tail  
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 no spines
Pigmentation early
Rows on tail no rows
Other melanophores on tail tail with single melanophore
Melanophores on head + trunk melanophores on trunk
Pigmentation late
Rows on tail no rows
Other melanophores on tail tail with single melanophore
Melanophores on head + trunk melanophores on trunk
Urostyle region   early unpigmented late pigmented
Peritoneum without melanophores
Pectorals normal  
Pelvics normal (i.e. small or absent)  
At 9mm: primordial fin still there, 2 ventral black spots of melanoph.: 1 on peritoneum and 1 at the end of the tail. 1 dorsal melanoph. in correspondence with the ventral one. At 13 mm only 1 melanophore at the center of the urostyle. Round pectorals.
  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
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