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Larvae Information Summary for  Fowlerichthys avalonis
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Main Ref: Watson, W. 1996
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm) 2.2      
Preanal L. % TL 70 40    
Place of development planktonic
Larval area California Current region
Yolk-sac       Ref:  
Yolk   Oil globules  
Rows on tail  
Other melanophores on tail  
Post larvae
Striking feature none
Striking shape lateral short and/or deep dorsal  
Striking feature none
Shape of gut triangular
Gas bladder   early   late  
Spinal armature   early   late  
Pigmentation early
Rows on tail no rows
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on head
Pigmentation late
Rows on tail no rows
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on head + trunk
Urostyle region   early unpigmented late unpigmented
Pectorals strikingly large without melanophores
Pelvics normal (i.e. small or absent) without melanophores
Small, deep-bodied, with large head; skin inflated and somewhat balloon-like; 5-6 preanal myomeres (through flexion stage), 18-20 total myomeres; "scutatus" stage develops between 3.4-3.6 mm; diagnostic fin ray counts present by 3.3 mm. Pigmentation: Preflexion-postflexion: on nape, becoming internal during flexion stage, extending posteriorly over notochord; under mid- and hindbrain; dorsally and dorsolaterally on gut; ventrally on gut beginning posteriorly, spreading anteriorly during flexion; inside gill cover at level of eye beginning in flexion stage. Juvenile: completely pigmented, with scattered darker spots; bands on dorsal, anal, caudal, pectoral fins. Sequence of fin development: caudal, dorsal and anal and pectorals and pelvics.
Meristic characters
  max min mod Ref.
Total number of vertebrae 19 19 19 36491
  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
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