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Larvae Information Summary for  Sargocentron suborbitale
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Main Ref: Watson, W. 1996
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm) 1.6      
Preanal L. % TL        
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 some dorsal fin rays very elongated
Striking shape lateral other dorsal  
Striking feature some dorsal fin rays very elongated
Shape of gut  
Gas bladder   early   late  
Spinal armature   early several different spines late several different spines
Pigmentation early
Rows on tail ventral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on head + trunk
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 pigmented late unpigmented
Pectorals normal without melanophores
Pelvics normal (i.e. small or absent) without melanophores
Large rostrum with long single terminal spine after about 2 mm; very long spines at angle of preopercle and on supraoccipital crest after 1.8-2.2 mm; anal fin rays 8-9 (present by postflexion stage; ray 1 becomes spine IV by about 14 mm); preanal myomeres 7-8 (preflexion stage) or 14 (postflexion stage), 26 total; pigment on last half of tail at least through preflexion stage; rostrum and pelvic fins unpigmented. Pigmentation: Preflexion-postflexion: few over midbrain beginning at about 2.4 mm, mainly along cranial ridges, increases gradually; internally over (after about 2.4 mm) and under hindbrain, extending dorsally over spinal cord anteriorly; internally above, below and along vertebral column in postflexion stage; under opercle in postflexion stage; externally on trunk in postflexion stage, spreading caudad to level of DVII or VIII by end of stage; gut completely pigmented except end of hindgut; few posteriorly on ventral margin and above and below notochord tip, decreasing to 0-3 by about 6 mm. Sequence of fin development: caudal, dorsal and anal and pelvics, pectorals.
Meristic characters
  max min mod Ref.
Total number of myomeres 16 16   36626
  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. - 28.11.00
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