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Pleuronectiformes - Pleuronectidae

Lepidopsetta bilineata (Southern Rock Sole)

Illustration Meristics Life History ELH Descr. Distribution Footnotes
More information for this taxon at: LarvalBase | FishBase | Univ. Washington Data

EGG INFORMATION

Egg Diameter (min-max in mm): 0.86 - 1.082
Number of Oil Globules (min-max):
Oil Globule Diameter (min-max in mm):
Yolk: Homogeneous
Chorion: Sticky, bright yellow or orange
Egg/Embryo Pigment:
Pigment Diagnostics:
Diagnostic Characters:

LARVAE INFORMATION

Hatch Size (min-max in mm SL): 3.0; 3.6 - 4.02
Preanal Length (%SL): 32.9 - 34.6
Flexion Length (in mm SL): 6.4 - 6.6
Length at Transformation (in mm SL): 10.8 - 16
Fin Development Sequence: Caudal, dorsal and anal, pelvics, pectorals
Larval Pigment Regions: In each developmental larval stage, pigment is present in the regions listed below
(click for pigment regions)
Yolk-sac:
Preflexion: mouth, cheek, isthmus, dorsal gut, lateral gut, ventral gut, dorsal finfold, anal finfold, dorsal, ventral, mediolateral, caudal,
Flexion: mouth, cheek, isthmus, dorsal gut, lateral gut, ventral gut, caudal finfold, dorsal, ventral, mediolateral, caudal,
Postflexion: mouth, crown, cheek, isthmus, dorsal gut, lateral gut, ventral gut, dorsal finfold, anal finfold, caudal finfold, dorsal, ventral, mediolateral, caudal,
Juvenile: mouth, crown, nape, cheek, isthmus, dorsal gut, lateral gut, ventral gut, dorsal finfold, anal finfold, caudal finfold, pectoral fin, dorsal, ventral, mediolateral, caudal,
Pigment Diagnostics: Distinguished from Lepidopsetta polyxystra by: pigment patches along distal edges of dorsal and anal finfolds during preflexion stage, 4 spots along dorsal midline, series of small postanal ventral melanophores extending from anus to posteriormost myomere; posteriormost dorsal midline spot forms bar with corresponding ventral patch during flexion stage, pectoral-fin rays unpigmented
Diagnostic Characters: Distinguished from Lepidopsetta polyxystra by: body deep and preanal length short, hatching, flexion, and transformation at comparatively smaller sizes; pigment patches along distal edges of dorsal and anal finfolds during preflexion stage, 4 spots along dorsal midline, series of small postanal ventral melanophores extending from anus to posteriormost myomere, anterior dorsal midline spot and posteriormost dorsal spot form bar with corresponding ventral patch during flexion stage, pectoral-fin rays unpigmented


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last updated: August 2019