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Larvae Information Summary for  Coryphaenoides acrolepis
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Main Ref: Ambrose, D.A. 1996
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm)        
Preanal L. % TL 34 29    
Place of development planktonic
Larval area Northeastern Pacific (California Current region); Northwestern Pacific (Japan)
Yolk-sac       Ref:  
Yolk   Oil globules  
Rows on tail  
Other melanophores on tail  
Post larvae
Striking feature none
Striking shape lateral normal (not striking) dorsal  
Striking feature none
Shape of gut triangular
Gas bladder   early visible late visible
Spinal armature   early no spines late no spines
Pigmentation early
Rows on tail no rows
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on head + trunk
Pigmentation late
Rows on tail lateral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on head + trunk
Peritoneum covered with melanophores
Pectorals normal without melanophores
Pelvics fin rays only without melanophores
Number of first dorsal fin rays (8-11); pelvic fin rays (8-9); pyloric caeca 12-14; gas glands 4; presence of rostral scutes in juveniles >16 mm HL; branchiostegal rays 6; basipterygia robust; lateral pigmentation light on the posterior 20% of body. Pigmentation: Preanal fin formation: over top of head; on snout and lower jaw; internally over peritoneum; along bases of dorsal and anal finfolds; absent laterally on the posterior one-third of tail. Anal-fin formation through transformation: increasing laterally on body and tail; lateral posterior one-third of tail remains lightly pigmented. Sequence of fin development: pelvics, first dorsal, anal, second dorsal, pectorals.
  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: Luna,Susan M. - 04.02.00
Modified by: Luna,Susan M. - 11.03.03
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