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Larvae Information Summary for  Bolinichthys longipes
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Main Ref: Moser, H.G. and E.H. Ahlstrom 1996
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm) 3      
Preanal L. % TL 62 53    
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 light organs
Striking shape lateral normal (not striking) dorsal  
Striking feature light organs
Shape of gut elongated
Gas bladder   early pigmented late pigmented
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 no rows
Other melanophores on tail tail with single melanophore
Melanophores on head + trunk melanophores on head + trunk
Urostyle region   early unpigmented late unpigmented
Peritoneum without melanophores
Pectorals normal without melanophores
Pelvics fin rays only without melanophores
Moderately slender body; head and jaw size moderate; eyes large and nearly round; snout blunt; gut to midbody with slight sigmoid curvature; pigment sparse but diagnostic (see Ceratoscopelus townsendi; Br2 photophores form at about 5.0 mm; Br1, Op1, and PO5 form during transformation; larvae somewhat similar to those of C. townsendi but are stouter, have a larger, more round eye, have embedded pigment in the otic region (lacking in C. townsendi larvae <10.5 mm), and lack early developing photophores present in C. townsendi larvae. Pigmentation: Preflexion: 3-9 (usually 4-6) in median ventral series extending posteriad from above preanal arch of gut; 1 above gas bladder by 4.0 mm; 1 embedded in otic region in larvae as small as 4.4 mm. Flexion: by 5.0 mm, postanal series coalesces to 1, occasionally 2, in caudal peduncle region in larvae as small as 5.3 mm. Postflexion: all larvae >7.0 mm have series above spinal column, 1-9 (usually 2-3), 1 or 2 in dorsal midline posterior to cerebellum at about 8.0 mm. Sequence of fin development: caudal, dorsal and anal and pectorals, pelvics.
Meristic characters
  max min mod Ref.
Total number of vertebrae 35 32   31442
  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. - 04.10.00
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