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Larvae Information Summary for  Brosmophycis marginata
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Main Ref: Ambrose, D.A. 1996
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm) 8      
Preanal L. % TL        
Place of development planktonic
Larval area California Current region
Yolk-sac       Ref:  
Yolk   Oil globules  
Rows on tail dorsal + ventral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on head + trunk
Pigmentation: similar to 9.8 mm preflexion larva; on lip; gas bladder; above cleithrum; 3 patches laterally on gut; 4 more or less alternating patches dorsally and ventrally; heavy along tail margins and onto finfold anterior to notochord tip.
Post larvae
Striking feature none
Striking shape lateral normal (not striking) dorsal  
Striking feature none
Shape of gut spherical or gut loop
Gas bladder   early pigmented late  
Spinal armature   early no spines late no spines
Pigmentation early
Rows on tail dorsal + ventral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on head + trunk
Pigmentation late
Rows on tail dorsal + ventral row
Other melanophores on tail one dorso-ventral cluster or band
Melanophores on head + trunk melanophores on head + trunk
Pectorals normal without melanophores
Pelvics normal (i.e. small or absent) without melanophores
Total vertebrae 63-65; total pectoral fin rays 16-17; branchiostegals 7; gut looped at about 9-10 mm BL and is positioned about mid-cavity; pigmentation in alternating patches along dorsum and ventrum through midflexion stage. Pigmentation: Flexion: on opercle and snout; row along base of dorsal and anal fin pterygiophores; scattered on base of caudal fin and in dorsal and anal fins. Transformation-juvenile: scattered over body. Sequence of fin development: dorsal and anal, caudal, pectorals, pelvics.
Meristic characters
  max min mod Ref.
Total number of vertebrae 65 63   36488
  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
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