FishBase
Larvae Information Summary for  Apterichtus caecus
( 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)        
Preanal L. % TL        
Place of development planktonic
Larval area Gulf of Guinea (Ref. 6522)
Yolk-sac       Ref:  
Yolk segmented Oil globules more than one oil globuleposterior
Rows on tail  
Other melanophores on tail  
Teeth and pigment present.
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 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 head + trunk
Urostyle region   early pigmented late pigmented
Peritoneum with row of melanophores
Pectorals normal  
Pelvics normal (i.e. small or absent)  
Very short dorsal fin, 5-6 sublateral caudal spots. At 12 mm 5 abdominal spots, last one before anus, 1 anal spot, and caudal pigment. 160-163 myom. incl. 74-79 preanal. Later 10-19 abdominal; 148-159 myomer.
  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. - 30.01.08
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