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Species: Gobiosoma species A, Short gill-raker goby

All Families:   All Genera:   All Species:

head round
body pale brown + dark dots or narrow bars
D2 10-11
no head barbels
flank scales to base of pectoral

Gobiosoma species A

Short gill-raker goby

Head  ~round; mouth oblique; snout blunt, sloping abruptly down at front; narrow (< ½ eye diameter) between eyes; tongue tip blunt; no barbels on head; gill rakers short; dorsal fin VII (none elongate) + I, 10-11 (usually 11) rays; 9-11 (usually 10) anal rays; 14-17 (usually 16-17) pectoral rays; pelvics fused in disc; male genital papilla slender, pointed; body completely scaled behind a line under rear 1/3 of soft dorsal, with a triangular extension of scales forwards along mid-flank to pectoral base; scales large, rough, in 26-31 longitudinal rows; 5-6 large, very rough scales on base of tail fin.

Head and body caramel brown; female uniform body and fins, entire head and body densely speckled with black dots; male darker, especially on head, plus 6-8 narrow dark bars on flank, fins dusky.

Size: 5.0 cm.

Habitat: estuaries, mud bottom.

Depth: 1-10 m.

The Gulf of Panama.

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  • Non Marine
  • Brackish
  • Inshore Only
  • Inshore
Water Column Position
  • Bottom
  • Bottom only
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Soft bottom only
  • Sand & gravel
FishBase Habitat
  • Demersal
Feeding Group
  • No Data
  • Carnivore
  • No Data
  • Mobile benthic gastropods/bivalves
  • Mobile benthic worms
  • Mobile benthic crustacea (shrimps/crabs)
Egg Type
  • No data
  • Benthic
  • Pelagic larva
Global Endemism
  • East Pacific endemic
  • Tropical Eastern Pacific (TEP) endemic
  • All species
Regional Endemism
  • TEP endemic
  • Continental TEP endemic
  • All species
  • Continent
  • Continent only
  • Panamic province endemic
  • Resident
Climate Zone
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
IUCN Red List
  • Not evaluated / Listed
  • Not listed
Length Max
  • 5
Depth Range Min
  • 1
Depth Range Max
  • 10