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Larvae Information Summary for  Grammonus diagrammus
( not available )

Main Ref: Ambrose, D.A. 1996
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm) 3.5      
Preanal L. % TL        
Place of development  
Larval area California Current region
Yolk-sac       Ref:  
Yolk   Oil globules  
Rows on tail dorsal + ventral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on head + trunk
Pigmentation: (intraovarian): 1 anterior to pectoral fin bud; scattered along dorsum posteriorly from nape and ventrally along tail margin to about 80% BL; gap followed by blotch dorsally and ventrally and fine specks almost to end of tail.
Post larvae
Striking feature none
Striking shape lateral normal (not striking) dorsal  
Striking feature none
Shape of gut spherical or gut loop
Gas bladder   early   late  
Spinal armature   early no spines late no spines
Pigmentation early
Rows on tail dorsal + ventral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on head + trunk
Pectorals normal without melanophores
Pelvics normal (i.e. small or absent) without melanophores
Total vertebrae 49-53; juveniles have deeper body and large head than the other brotulids in the area; pigment heavier than other brotulids from region. Pigmentation: Juvenile: heavy on dorsal, anal, and caudal fin; scattered over anterior 66% of body, increasing posteriad; body completely covered by 34 mm. Sequence of fin development: probably dorsal and anal, caudal, pectorals, pelvics.
Meristic characters
  max min mod Ref.
Total number of vertebrae 53 49   36488
  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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