Shorefishes of the Eastern Pacific online information system

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Species: Gobiesox canidens, Dog-tooth clingfish, Socorro clingfish

All Families:   All Genera:   All Species:

top lip: large papillae
D 10-11, black spot at front, well behind pectoral
body & fins dark
lower jaw: 3-pointed incisors + large canines
anus ~ midway A to sucker
pectoral 22

Gobiesox canidens (Briggs, 1951)

Socorro clingfish, Dog-tooth clingfish

Tadpole shaped, head broad, depressed; well developed lobe-like papillae on head and along margin of upper lip, none on center of snout; top lip broad, much wider at front than at sides; rear nostril over front edge of eye, front nostril with a large flap that has 2 large, wide lobes; 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, front 4 pairs 3-pointed, followed by row of canines, 2nd  and 3rd  large; anus ~ midway between anal fin origin and sucker; sucker large, with papillae at front (a broad band), center (2 widely spaced patches) & rear; 9-10 rows of papillae across front section, patches in center, each with 4-5 longitudinal rows of papillae; a large fleshy pad with free rear edge at base of pectoral fin; dorsal fin short, 10-11 rays, well behind pectoral; anal rays 8- 9; pectoral rays 21-22; caudal rays 10.

(Preserved fish) Top and sides uniform dark blackish brown; dorsal, anal and tail fins same color, with clear margins; dorsal with distinct black spot at front edge; pectorals clear, with small brown spots along each ray.

Size: 4.9 cm.

Habitat: rocky shores.

Depth: 0-10 m?

Endemic to the Revillagigedos Islands.

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  • Marine Only
  • Marine
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom only
  • Bottom
  • Reef associated (reef + edges-water column & soft bottom)
  • Rocks
  • Reef only
  • Reef (rock/coral/oyster)
FishBase Habitat
  • Demersal
Feeding Group
  • Carnivore
  • No Data
  • Mobile benthic crustacea (shrimps/crabs)
  • Mobile benthic worms
  • Mobile benthic gastropods/bivalves
  • No Data
Egg Type
  • Pelagic larva
  • Benthic
  • No data
Global Endemism
  • East Pacific endemic
  • Tropical Eastern Pacific (TEP) endemic
  • All species
Regional Endemism
  • All species
  • Island (s) only
  • Island (s)
  • TEP endemic
  • TEP oceanic island (s) endemic
  • Revillagigedo Islands endemic
  • Resident
Climate Zone
  • Northern Tropical (Mexican Province to Nicaragua + Revillagigedos)
IUCN Red List
  • Vulnerable
  • Listed
  • Not listed
Length Max
  • 4.9
Depth Range Min
  • 0
Depth Range Max
  • 10