Larvae Information Summary for  Ophichthus cruentifer
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Main Ref: Fahay, M. 1983
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm) 7.3 5.7 6.5 68
Preanal L. % TL        
Place of development planktonic
Larval area Mid-Atlantic Bight
Yolk-sac       Ref:  
Yolk segmented Oil globules one oil globule
Post larvae
Striking feature  
Striking shape lateral   dorsal  
Striking feature  
Shape of gut  
Gas bladder   early   late  
Spinal armature   early   late  
Diagnostic characters: leptocephalus larvae; gut long and undulating with 9 peaks or loops, length decreases with age. Pigmentation: tip of lower jaw, top of head, snout; dorsal edge of body; dorsal patches on gut loops, ventral patches added after about 20 mm, and spots develop between loops in larger larvae; myosepta sporadically pigmented along midline; 5-7 subcutaneous spots ventral to midline on tail; few spots on flank on upper and lower angles of some myosepta; anal base pigment in short linear clusters. Sequence of fin formation: pectoral fin late forming; pelvic fin absent.
Meristic characters
  max min mod Ref.
Total number of myomeres 162 142   68
Preanal number of myomeres 75 66   68
  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. - 08.08.00
Modified by: Luna,Susan M. - 23.08.02
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