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Species: Notarius insculptus, Flathead sea-catfish

All Families:   All Genera:   All Species:

top barbels long
large eye
nape bone = broad triangle
plate before D- narrow crescent
wide mouth, thick lips & ruffled
gill rakers: 11-12 1st arch, 11-13 2nd
gill openings wide

Notarius insculptus (Jordan & Gilbert, 1883)

Flathead sea-catfish

Snout moderately pointed, projecting slightly; between eyes flat and smooth; central head groove broad and flat, tapering posteriorly and extending to within one eye diameter of base of bony nape process; bony nape process triangular, its base wide, and about equal to its length; eye large (3.8-4.3% of SL); mouth wide (12.3-14.4% of SL), lips thick and ruffled;  teeth on roof of mouth in four patches, those usually continuous, the inner patches smaller than outer ones; top barbells long (26.7-30.3% of SL); gill opening wide, membranes not adhering to breast; 11-12 gill rakers on first arch, 11-13 on second; no rakers on posterior surface of first two gill arches; bone before dorsal fin base a narrow crescent; dorsal rays I, 7, spine long (20.7-21.8% of SL); adipose 2nd  dorsal fin base ~ ½ as long as dorsal fin base; anal rays 17-19; pectoral rays I, 10.

Dark brown or greyish on back, white on ventral surface; fins dusky.

Maximum size, 59 cm.

Habitat: soft bottoms, estuaries.

Depth: 0- 25 m.

Panama and Colombia.

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  • Non Marine
  • Brackish
  • Inshore Only
  • Inshore
Water Column Position
  • Bottom only
  • Bottom
  • Soft bottom only
  • Mud
  • Estuary
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Sand & gravel
FishBase Habitat
  • Demersal
Feeding Group
  • No Data
  • Carnivore
  • Mobile benthic gastropods/bivalves
  • Mobile benthic crustacea (shrimps/crabs)
  • Data
  • Mobile benthic worms
Egg Type
  • Brooded
  • No pelagic larva
  • No pelagic phase
  • No data
Global Endemism
  • East Pacific endemic
  • All species
  • Tropical Eastern Pacific (TEP) endemic
Regional Endemism
  • Continent only
  • Continent
  • 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
  • Data deficient
  • Listed
  • Not listed
Depth Range Max
  • 25
Depth Range Min
  • 0
Length Max
  • 59