Shorefishes of the Eastern Pacific online information system

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Species: Trinectes opercularis, Spot-cheek sole

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front nostril: ring of cirri
body densely freckled
operculum: dark & pale blotches
D 48-52; A 35-37
no hole between gill chambers
LL ~ 80
blind side opercular flap ~no scales

Trinectes opercularis (Nichols & Murphy, 1944)

Spot-cheek sole

Body oval; eyes on right side, small, upper one a little further forward than lower; a ring of cirri on margin of eye-side front nostril; snout rounded; mouth small, arched, a little below snout, ends under lower eye; filaments on blind side behind mouth & on anterior fin rays; front margin of head with short tentacles; rear edge of preopercle covered with skin, visible as a superficial groove; gill openings wide, united before pelvic fins; without opening connecting gill chambers on both sides; dorsal origin ~ above eye; dorsal rays 48-52; anal rays 35-37; no pectoral fin; pelvic on eye side fused to anal; pectorals present or absent; lateral line from head to tail, straight, with perpendicular branches running across body; body covered with rough scales; scales in longitudinal series ~ 80; opercular margin on blind side mostly without scales.

Upper body dark grey-brown, densely freckled; dorsal & anal as body, tail paler; scaleless opercular area sometimes with conspicuous pattern of irregular dark & pale blotches; blind side white.

Size: 15 cm.

Habitat: sand & mud.

Depth: 10-40 m.

Colombia and Ecuador.

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  • Marine Only
  • Marine
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Bottom only
  • Sand & gravel
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Soft bottom only
FishBase Habitat
  • Demersal
Feeding Group
  • Carnivore
  • No Data
  • No Data
  • Bony fishes
  • Mobile benthic crustacea (shrimps/crabs)
  • Mobile benthic worms
Egg Type
  • Pelagic
  • Pelagic larva
  • No data
Global Endemism
  • Tropical Eastern Pacific (TEP) endemic
  • All species
  • East Pacific endemic
Regional Endemism
  • Continent
  • Continent only
  • Continental TEP endemic
  • TEP endemic
  • Panamic province endemic
  • All species
  • Resident
Climate Zone
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
IUCN Red List
  • Listed
  • Data deficient
  • Not listed
Length Max
  • 15
Depth Range Min
  • 10
Depth Range Max
  • 40