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Species: Gobiosoma hildebrandi, Hildebrand's Goby

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3-4 oblique forward pointing bars behind eye
pores: opercle 0; preopercle 2-3
no head barbels
D2 I, 10; A 9; pectoral 17
6 dark, wide, oblique bars, center with dark dashes
pelvic disc round
scales: wedge C in 25-28 rows; 4 v large on C base

Gobiosoma hildebrandi (Ginsburg, 1939)

Hildebrand's Goby

Body robust; head almost round; 1 pore between eyes; no pore over opercle; preopercle with 2-3 pores; snout blunt; narrow between eyes (<1/2 eye diameter); no head barbels; mouth oblique; upper lip separated from snout by a groove along its top edge; no teeth on roof of mouth; upper and lower jaws with 3-4 rows of teeth, outer and inner enlarged; gill membranes broadly joined to body under throat, with 5 rays; dorsal fin VII (1st 2 elongate in male) + I, 10 (10-11); length of 2nd dorsal base > distance from 2nd dorsal base to tail fin; I, 9 (8-9) anal fin rays; 17 (16-18) pectoral fin rays; pelvics fused in round disc; genital papilla broad, 2-lobed in male, notched & fringed in female; body completely scaled behind a line under of center of soft dorsal, with a triangular extension of scales forwards along midflank under pectoral to its base; scales in 25-28 longitudinal rows; 4-6 large very rough scales on base of tail fin; no lateral line.

Light brown; ~6 forward-sloping wide dark bars on body, with narrow dark bars in between, centers of bars with series of longitudinal dashes along midside; head with a dark bar from eye down, an oblique, forward-pointing bar behind eye, another on preopercle, and 2 more on operculum; pectoral base with short bar, a spot at top & bottom bases of pectoral fin, joined by a narrow row of pigment; fins dusky, pelvics darker in males; dorsal & anal with 1-2 stripes along entire midline; tail with faint wavy bars in female.

Size: 4.6 cm.

Habitat: fresh and brackish water, with mud/rock substrate.

Depth: 0-6 m.

Panama; also at the Pacific entrance to the Panama Canal.

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  • Brackish
  • Freshwater
  • Non Marine
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Bottom only
  • Rocks
  • Sand & gravel
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Estuary
  • Freshwater
  • Mud
  • Reef (rock/coral/oyster)
  • Reef and soft bottom
  • Reef associated (reef + edges-water column & soft bottom)
FishBase Habitat
  • Reef Associated
Feeding Group
  • Carnivore
  • Data
  • Data
  • Insects
  • Mobile benthic crustacea (shrimps/crabs)
  • Mobile benthic gastropods/bivalves
  • Mobile benthic worms
Egg Type
  • Benthic
  • Data
  • Pelagic larva
Global Endemism
  • All species
  • Greater Caribbean endemic
  • West Atlantic Endemic
Regional Endemism
  • Caribbean endemic
  • Continent
  • Continent + Island (s)
  • GC endemic
  • Island (s)
  • All species
  • Resident
Climate Zone
  • Equatorial (0-10N, Costa Rica / Venezuela)
  • Tropical (10-23N, Nicaragua / Cuba)
IUCN Red List
  • Listed
  • Vulnerable
  • Not listed
Length Max
  • 4.6
Depth Range Min
  • 0
Depth Range Max
  • 6