Shorefishes of the Eastern Pacific online information system

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Species: Microgobius crocatus, Yellow-spotted goby

All Families:   All Genera:   All Species:

nape - almost no crest
D spines long both sexes
C: lower margin yellow
lips & pelvic margin yellow
rough scales behind pectoral
above anus - blue blotch
A: yellow base or margin

Microgobius crocatus Birdsong, 1968

Yellow-spotted goby

Head and body compressed; low fleshy crest on nape only in female; 2-3 pores on preopercle; mouth large, nearly vertical; tip of tongue divided; dorsal fin VII (in both sexes 3rd  to 5th  dorsal spines very long, extending to end of soft dorsal) + I, 17-18 rays; anal I, 17-18 rays; pectoral fin relatively long (25% of SL), 21-24 rays; tail fin long, oval or pointed (in males); pelvics fused to form disc; patch of rough scales on flank behind base of pectoral fin, remaining scales smooth, scales on body from pectoral axil rearwards -46-56 lateral rows.

Both sexes: caramel brown; a blue stripe under eye and several blue spots on cheek and operculum; pectoral base with blue and yellow spot; flank with a blue stripe joining a large blue blotch on side above anus; a blue blotch on chest; lips and outer part of pelvics yellow: tail fin with 3 central red streaks at its base and a yellow lower margin. Male: pale spots on first dorsal, a red line along rear base of second dorsal; anal fin dusky with yellow outer margin. Female:  anal fin dusky, with a yellow stripe along its base.

Size: 4.6 cm.

Habitat: mangroves with mud bottom.

Depth: 0-6 m.

El Salvador to Ecuador.

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  • Non Marine
  • Brackish
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom only
  • Bottom
  • Estuary
  • Mud
  • Mangrove
  • Soft bottom only
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
FishBase Habitat
  • Demersal
Feeding Group
  • Carnivore
  • No Data
  • Planktivore
  • No Data
  • Zooplankton
  • Pelagic fish larvae
Egg Type
  • Pelagic larva
  • No data
  • Benthic
Global Endemism
  • Tropical Eastern Pacific (TEP) endemic
  • All species
  • East Pacific endemic
Regional Endemism
  • Continent
  • Continental TEP endemic
  • All species
  • Continent only
  • TEP endemic
  • Panamic province endemic
  • Resident
Climate Zone
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
IUCN Red List
  • Listed
  • Least concern
  • Not listed
Length Max
  • 4.6
Depth Range Min
  • 0
Depth Range Max
  • 6