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Larvae Information Summary for  Arnoglossus thori
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Main Ref: Russell, F.S. 1976
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm) 2.32 1.59 2  
Preanal L. % TL     41.2  
Place of development planktonic
Larval area to be filled
Yolk-sac elongated   unpigmented Ref: 65
Yolk unsegmented Oil globules one oil globuleposteriorventralpigmented
Other melanophores on tail one dorso-ventral cluster or band
Melanophores on head + trunk melanophores on head + trunk
Serration of the primordial fin, and reticulation of the epidermis.
Post larvae
Striking feature some dorsal fin rays very elongated
Striking shape lateral short and/or deep dorsal compressed
Striking feature some dorsal fin rays very elongated
Shape of gut spherical or gut loop
Gas bladder   early pigmented late pigmented
Spinal armature   early other spines late other spines
Other melanophores on tail one dorso-ventral cluster or band
Melanophores on head + trunk melanophores on head + trunk
Pigmentation late
Rows on tail dorsal row
Other melanophores on tail one dorso-ventral cluster or band
Melanophores on head + trunk melanophores on trunk
Urostyle region   early unpigmented late unpigmented
Peritoneum without melanophores
Pectorals normal without melanophores
Pelvics normal (i.e. small or absent) without melanophores
Five to eight spined plates along the ventral margin of the abdomen. Postanal band of melanophores 18th - 21st caudal segments.
Meristic characters
  max min mod Ref.
Total number of vertebrae 42 37 40 65
Preanal number of vertebrae     10 65
  L 1st feeding Ref. Months of presence of larvae
max     Jan Feb Mar Apr
min   May Jun Jul Aug
mod 6   Sep Oct Nov Dec
Water parameters     Metric characters
Entered by: Papasissi,Christine - 19.10.90
Modified by: Reyes,Rodolfo B. - 05.10.94
Checked by: Giovanardi,Otello - 15.02.91
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