Shorefishes of the Eastern Pacific online information system

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Species: Gobulus crescentalis, Crescent goby

All Families:   All Genera:   All Species:

upper 1/2 tan + spots, lower purple & brown
Ds separate, yellow, white, orange
D2 10-11: A 9-10
pectoral 17

Gobulus crescentalis (Gilbert, 1892)

Crescent Goby

Slender, compressed body; distinctly depressed head; head without pores; mouth small, at front, oblique, lower jaw projecting, top jaw not extending beyond eye; teeth in bands on jaws, no canines; longitudinal and vertical rows of papillae on cheeks; dorsal fin VII+ I, 11 (10-11), 2 fins separate; anal fin I, 10 (9-10); pectoral fin 17 (16-18); almost no membrane between the front of the pelvic spines, fins form a flat plate; tail short, rounded; no scales.

Upper ½ of head and body light and lower sides and belly dark, dark color does not reach above midline of body . Male: lower body purplish at front, brown at rear; upper body tan with darker mottling; tail fin base with cream crescent shaped bar with blackish outer edge, gold outer fin; dorsal fins yellowish; anal and pelvic fins white; pectoral with orange mottling. Female: lower body dark maroon, upper pale tan with fine brown spots; crescent bar at tail fin base; first dorsal orange, second dorsal white.

Size: 6.1 cm.

Habitat: rocks on sand, and cobble.

Depth: 1-20 m.

Central Baja and throughout the Gulf of California to Panama; Cocos Is.

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  • Marine Only
  • Marine
  • Inshore Only
  • Inshore
Water Column Position
  • Bottom only
  • Bottom
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Rocks
  • Reef (rock/coral/oyster)
  • Reef and soft bottom
  • Reef associated (reef + edges-water column & soft bottom)
  • Sand & gravel
FishBase Habitat
  • Demersal
Feeding Group
  • Carnivore
  • No Data
  • No Data
  • Mobile benthic worms
  • Mobile benthic crustacea (shrimps/crabs)
  • Mobile benthic gastropods/bivalves
Egg Type
  • No data
  • Pelagic larva
  • Benthic
Global Endemism
  • All species
  • East Pacific endemic
  • Tropical Eastern Pacific (TEP) endemic
Regional Endemism
  • Continent
  • Island (s)
  • All species
  • TEP endemic
  • Resident
Climate Zone
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
  • Northern Tropical (Mexican Province to Nicaragua + Revillagigedos)
  • Northern Subtropical (Cortez Province + Sinaloan Gap)
  • North Temperate (Californian Province &/or Northern Gulf of California)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 6.1
Depth Range Min
  • 1
Depth Range Max
  • 20