Species: Gobiosoma aceras, White-margined goby
D2 I, 13
Gobiosoma aceras Ginsburg, 1939
White-margined goby
Head round; a pair of joined barbels under chin, 1 prominent barbel under front nostril; pore between front edges of eyes, 2 pores above opercle, pores on preopercle; both nostrils tubular; teeth in bands, with some canines, none on sides of roof of mouth; tongue with round tip; gill opening restricted to vertical opening as long as width of pectoral fin base; dorsal fin VII + I, 13, long based; anal I, 10; pelvics fused in disc with smooth front edge; tail round, with 17 segmented rays; scales small (32-55 along side), mainly rough, extend forwards to just behind inner pectoral base; 2 very rough scales at base of tail fin; head, breast & belly scaleless.
Whitish; about 3 dark lines radiate down from eye; dark bar across nape;body with ~ 5 wide blackish bars that extend onto the dorsal fin (2 on 1st dorsal, 3 on the 2nd), with intervening narrow bars; tail fin with a broad black bar at its base, 2 faint outer bars; both sexes similarly colored.
Size: 4.6 cm.
Habitat: estuarine, rocky and mangrove tidepool; rock, shell and mud bottoms.
Depth: 0-10 m.
El Salvador to Panama.
High Resolution Map Download
- Salinity
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- Brackish
- Marine
- Inshore/Offshore
-
- Inshore
- Inshore Only
- Water Column Position
-
- Bottom only
- Bottom
- Habitat
-
- Sand & gravel
- Mud
- Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
- Soft bottom only
- FishBase Habitat
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- Demersal
- Feeding Group
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- Carnivore
- No Data
- Diet
-
- Mobile benthic crustacea (shrimps/crabs)
- Mobile benthic worms
- No Data
- Mobile benthic gastropods/bivalves
- Egg Type
-
- Pelagic larva
- No data
- Benthic
- Global Endemism
-
- All species
- East Pacific endemic
- Tropical Eastern Pacific (TEP) endemic
- Regional Endemism
-
- Continent
- TEP endemic
- Continental TEP endemic
- Continent only
- Panamic province endemic
- All species
- Residency
-
- Resident
- Climate Zone
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- Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
- IUCN Red List
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- Data deficient
- Listed
- CITES
-
- Not listed
- Length Max
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- 4.6
- Depth Range Min
-
- 0
- Depth Range Max
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- 10
