Shorefishes of the Eastern Pacific online information system

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Species: Gobiesox stenocephalus, Narrow-headed clingfish

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snout & top lip no papillae
D 8-10, well behind pectoral
pale + dense brown spots
belly: 2 rows large brown spots
lower jaw: 2 rows teeth
anus nearer sucker than A

Gobiesox stenocephalus Briggs, 1955

Narrow-headed clingfish

Tadpole shaped, head short, narrow, well depressed, snout long; eye large; papillae on head poorly developed, short lobes, none on top lip or tip of snout above top lip; top lip broad, much wider at front than at sides; rear nostril directly over front edge of eye, front nostril with a simple, unlobed flap; top jaws each with an irregular outer row of pointed teeth, & a patch of irregular teeth behind them, canines along side; teeth on lower jaw in 2 rows, outer row larger, 3-4 pairs of round-tipped incisors at front, followed by row of long canines; anus much nearer sucker than anal fin origin; sucker large, with papillae at front (a broad band), center (2 widely spaced patches) & rear, with 5 rows of papillae across front section, patches in center each with 3 longitudinal rows of papillae; a large fleshy pad with free rear edge at base of pectoral fin; dorsal fin with short base, 9 (8-10) rays, well behind pectoral; anal rays 7 (6-7); pectoral rays 22 (21-22); caudal rays 12 (11-13).
(Preserved fish) Top and sides pale, translucent, evenly covered with very small brown dots; fins clear, except for few dots at pectoral base; underside pale, 2 rows of larger dark spots from sucker to alongside anus.
Tamaño: 2.8 cm.
Hábitat: fondos rocosos.
Profundidad: 0-10 m?
Northern Costa Rica.

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  • Marine Only
  • Marine
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom only
  • Bottom
  • Rocks
  • Reef (rock/coral/oyster)
  • Reef associated (reef + edges-water column & soft bottom)
  • Reef only
FishBase Habitat
  • Reef Associated
Feeding Group
  • Carnivore
  • No Data
  • No Data
  • Mobile benthic crustacea (shrimps/crabs)
  • Mobile benthic worms
  • Mobile benthic gastropods/bivalves
Egg Type
  • Benthic
  • Pelagic larva
  • No data
Global Endemism
  • Tropical Eastern Pacific (TEP) endemic
  • East Pacific endemic
  • All species
Regional Endemism
  • Panamic province endemic
  • Continental TEP endemic
  • Continent
  • All species
  • TEP endemic
  • Continent only
  • Resident
Climate Zone
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
IUCN Red List
  • Listed
  • Data deficient
  • Not listed
Length Max
  • 2.8
Depth Range Min
  • 0
Depth Range Max
  • 10