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Larvae Information Summary for  Acanthurus monroviae
( 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)     2.5 80
Preanal L. % TL     48 80
Place of development planktonic
Larval area to be filled
Yolk-sac ovoid     Ref: 80
Yolk unsegmented Oil globules one oil globuleanteriorcentralpigmented
Rows on tail dorsal row
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 triangular
Gas bladder   early pigmented late pigmented
Spinal armature   early no spines late no spines
Pigmentation early
Rows on tail ventral row
Other melanophores on tail tail with single melanophore
Melanophores on head + trunk melanophores on head + 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 covered with melanophores
Pectorals normal  
Pelvics normal (i.e. small or absent)  
At 5mm; 2 spots of black pigment on the dorsal margin, 1 on the postanal ventral and 1 in correspodence with the anus. Operculum being formed. Small ventrals. At 15mm 3rd ray ray of the dorsal longer than the anterior.
Meristic characters
  max min mod Ref.
Total number of myomeres     25  
  L 1st feeding Ref. Months of presence of larvae
max     Jan Feb Mar Apr
min   May Jun Jul Aug
mod 4.5   Sep Oct Nov Dec
Water parameters     Metric characters
Entered by: Papasissi,Christine - 29.10.90
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