FishBase
Larvae Information Summary for  Cryptopsaras couesii
( not available )

Main Ref: Watson, W. 1996
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm) 2.5      
Preanal L. % TL        
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 other
Striking shape lateral short and/or deep dorsal  
Striking feature other
Shape of gut triangular
Gas bladder   early   late  
Spinal armature   early   late  
Pigmentation early
Rows on tail lateral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on head + trunk
Pigmentation late
Rows on tail lateral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on head + trunk
Urostyle region   early unpigmented late unpigmented
Pectorals normal without melanophores
Pelvics normal (i.e. small or absent)  
Vertebral column strongly arched; dorsal and anal fin rays 4; caudal fin rays 8; pelvic fins absent; branchiostegal rays 6; ring of melanophores around "neck"; 3 caruncles visible on females by 3.3 mm. Pigmentation: Flexion-postflexion: narrow band encircling body at level of nape; dorsally and dorsolaterally on body above gut, spreading ventrad and caudad; laterally on caudal peduncle; internally on dorsal and dorsolateral surfaces of gut. Transformation: females completely pigmented except on dorsal, anal, and caudal fin rays; males lightly pigmented, retain larval pattern. Sequence of fin development: illicium and caruncle and caudal, dorsal, anal and pectorals. Transformation length of: males - 6.5-8.5 mm; females - 8-10 mm.
Meristic characters
  max min mod Ref.
Total number of vertebrae 20 20 20 36494
  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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