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Larvae Information Summary for  Orthopristis chrysoptera
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Main Ref: Darcy, G.H. 1983
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm)     1.5 39467
Preanal L. % TL        
Place of development planktonic
Larval area Northwestern Atlantic
Yolk-sac spherical   pigmented Ref:  
Yolk   Oil globules one oil globuleanteriorventralpigmented
Rows on tail no rows
Other melanophores on tail two dorso-ventral clusters or bands
Melanophores on head + trunk no melanophores on head or trunk
No prominent pigmentation. At about 2.5-3.0 mm, some specimens have pigment spots dorso-ventrally above the vent and at mid-caudal length.
Post larvae
Striking feature lower jaw strongly projecting
Striking shape lateral normal (not striking) dorsal  
Striking feature lower jaw strongly projecting
Shape of gut elongated
Gas bladder   early   late  
Spinal armature   early no spines late other spines
Pigmentation early
Rows on tail no rows
Other melanophores on tail no other melanophores
Melanophores on head + trunk no melanophores on head or trunk
Pigmentation late
Rows on tail dorsal + lateral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on head + trunk
Urostyle region   early unpigmented late unpigmented
Peritoneum without melanophores
Pectorals normal without melanophores
Pelvics normal (i.e. small or absent) without melanophores
Preserved specimens greater than 3 mm show no pigment and no yolk; vent located in advance of midbody length. At about 5 mm, the caudal fin becomes evident. At 15 mm, a lateral band of dark pigment forms; also pigment on head and dorsal portion of body. Sequence of fin development: caudal (5 mm); dorsal and anal (6.7 mm); soft dorsal, anal, and caudal fairly complete (10 mm); spinous dorsal (11 mm); 10 well developed spines (17 mm).
  L 1st feeding Ref. Months of presence of larvae    Ref. 
max     Jan Feb Mar Apr
min   May Jun Jul Aug
mod     Sep Oct Nov Dec
Water parameters     Metric characters
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