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Larvae Information Summary for  Nettastoma melanura
( 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)     7  
Preanal L. % TL        
Place of development planktonic
Larval area to be filled
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.
Post larvae
Striking feature other
Striking shape lateral eel-like dorsal compressed
Striking feature other
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 tail with single melanophore
Melanophores on head + trunk no melanophores on head or trunk
Pigmentation late
Rows on tail no rows
Other melanophores on tail tail with single melanophore
Melanophores on head + trunk no melanophores on head or trunk
Urostyle region   early unpigmented late unpigmented
Peritoneum covered with melanophores
Pectorals normal  
Pelvics normal (i.e. small or absent)  
At 8 mm 1 abdominal pigment spot before the middle of intestine, 1 at the anus and 1 at caudal apex; 67 preanal and ca. 102 postanal myomeres. Teeth absent. Later 1 deep postanal lateral spot, 2 along the intestine.
  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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