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Perciformes - Stichaeidae

Phytichthys chirus (Ribbon Prickleback)

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): 2.25
Number of Oil Globules (min-max):
Oil Globule Diameter (min-max in mm):
Yolk:
Chorion: White
Egg/Embryo Pigment:
Pigment Diagnostics:
Diagnostic Characters: Eggs laid in conical-shaped mass

LARVAE INFORMATION

Hatch Size (min-max in mm SL): 11.2
Preanal Length (%SL): 45
Flexion Length (in mm SL): 13
Length at Transformation (in mm SL): 18 - 21
Fin Development Sequence: Caudal, dorsal and anal, pectorals
Larval Pigment Regions: In each developmental larval stage, pigment is present in the regions listed below
(click for pigment regions)
Yolk-sac:
Preflexion: crown, nape, dorsal gut, ventral gut, ventral, mediolateral,
Flexion: crown, nape, cheek, dorsal gut, ventral gut, ventral, mediolateral,
Postflexion: mouth, crown, cheek, dorsal gut, ventral gut, anal finfold, dorsal, ventral, mediolateral, caudal,
Juvenile:
Pigment Diagnostics: Distinguished from Xiphister spp. by: dorsal body midline unpigmented in preflexion and flexion larvae. Distinguished from Anoplarchus purpurescens by: lack of hypural spots in preflexion and flexion larvae
Diagnostic Characters: Distinguished from Xiphister spp. by: relatively larger at comparable stages of development (e.g., hatching occurs >10.0 mm SL), larger relative eye diameter, dorsal body midline unpigmented in preflexion and flexion larvae. Distinguished from Anoplarchus purpurescens by: lack of hypural spots in preflexion and flexion larvae


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last updated: June 2021