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Larvae Information Summary for  Scopelarchus analis
( not available )

Main Ref: Watson, W. and E.M. Sandknop 1996
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm) 4.8      
Preanal L. % TL 65 36    
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 teeth clearly visible
Striking shape lateral normal (not striking) dorsal  
Striking feature teeth clearly visible
Shape of gut elongated
Gas bladder   early absent late absent
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
Pigmentation late
Rows on tail dorsal + ventral + lateral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on head + trunk
Urostyle region   early unpigmented late unpigmented
Peritoneum with row of melanophores
Pectorals normal covered with melanophores
Pelvics fin rays only without melanophores
No peritoneal pigment before about 9.8 mm, then one anterior patch through 19 mm, dorsolateral pair of patches added posteriorly by 20 mm. Pigmentation: Preflexion-postflexion: none except on choroid tissue below eye before about 9 mm; 1 peritoneal patch above anterior middle of gut by 10 mm, shifting forward to level of pectoral fin by about 15 mm; pair of dorsolateral peritoneal patches above hindgut midway between pelvic fin and anus at about 20 mm. Transformation: dorsolateral and ventrolateral stripes form adjacent to lateral midline of tail by 25 mm, spread cephalad and caudad, become connected as bar across end of caudal peduncle by about 28 mm; peritoneal sections fuse by 33-55 mm. Sequence of fin development: caudal and pectorals, anal, dorsal, pelvics.
Meristic characters
  max min mod Ref.
Total number of myomeres 49 45   35929
  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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