Shorefishes of the Eastern Pacific online information system

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Species: Diplectrum conceptione, Yellow-mouth sand-perch

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in mouth yellow
belly: yellow blotch
preopercular spur: 4-6 spines, central 2 large & diverging
pelvics dark
A yellow

Diplectrum conceptione (Valenciennes in Cuvier & Valenciennes, 1828)

Yellow-mouth Sand-perch

Body elongate, moderately compressed; snout fairly blunt, lower jaw projecting slightly; angle of preopercle a bony spur with 2 large central spines that point apart, 1-2 smaller enlarged spines above and below these; 22-24 gill rakers; dorsal X, 12-13, 4th spine longest, a little longer than longest ray; anal small, III, 7, 3rd spine longest; tail deeply concave, upper tip longer; lateral line complete; snout and between eyes scaleless; scales moderately small, rough; ~ 53 lateral line scales, 7-8 vertical rows scales on cheek.

Head and back dark reddish brown; operculum with inside black a large black blotch on outside; inside mouth yellow; side of body with 7-8 rose bars extending down to level of pectoral; large yellow blotch on side of belly above and before anus; belly yellow along midline; dorsal translucent, thinly mottled with olive and orange, margin red; anal fin yellow; tail olivaceus, dark margin, large dark blotch on base; pelvics dark olive.

Size: 20 cm.

Habitat: soft bottoms.

Depth: 10-80 m.

Ecuador to Concepcion, Chile.

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  • Marine
  • Marine Only
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom only
  • Bottom
  • Mud
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Soft bottom only
  • Sand & gravel
FishBase Habitat
  • Demersal
Feeding Group
  • No Data
  • Carnivore
  • No Data
  • Bony fishes
  • Mobile benthic crustacea (shrimps/crabs)
Egg Type
  • Pelagic larva
  • No data
  • Pelagic
Global Endemism
  • TEP non-endemic
  • East Pacific endemic
  • All species
Regional Endemism
  • All species
  • Continent
  • Peruvian province, primarily
  • Continent only
  • Temperate Eastern Pacific, primarily
  • Tropical Eastern Pacific (TEP) non-endemic
  • Vagrant
Climate Zone
  • South Temperate (Peruvian Province )
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 20
Depth Range Min
  • 10
Depth Range Max
  • 80