Larvae Information Summary for  Urophycis regia
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Main Ref: Scotton, L.N., R.E. Smith, N.S. Smith, K.S. Price and D.P. de Sylva 1973
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm)        
Preanal L. % TL        
Place of development planktonic
Larval area Middle Atlantic Bight (Delaware Bay, New Jersey, Virginia)
Yolk-sac       Ref:  
Yolk   Oil globules  
Post larvae
Striking feature other
Striking shape lateral short and/or deep dorsal compressed
Striking feature other
Shape of gut  
Gas bladder   early   late  
Spinal armature   early no spines late no spines
Urostyle region   early unpigmented late unpigmented
Pectorals normal  
Pelvics with elongated fin rays  
At 4.0 mm, larve lack pigment on the pelvic fins and have no chromatophores at the base of the anal. At about 5.0 mm, the body is deep and compressed; mouth oblique; pelvic rays reach beyond vent. At 7.0 mm, 2nd dorsal and anal rays are differentiated.
Meristic characters
  max min mod Ref.
Total number of vertebrae 48 44   32309
  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. - 22.01.02
Modified by: Luna,Susan M. - 20.02.02
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