Species: Gobiosoma nudum, Knob-chin goby
Gobiosoma nudum (Meek & Hildebrand, 1928)
Knob-chin goby
Body robust; head rounded; snout blunt; tip of snout with a small central fleshy knob; chin with 2 small barbels; mouth oblique; tongue round to blunt; front nostril tubular, rear with raised rim; dorsal fin VII (none filamentous) + I, 11-12 rays; anal I, 9 rays; pectoral rays 18-20; pelvics fused in disc; scales usually absent (sometimes 1-4 scales just behind base of pectoral fin and two scales on base of tail fin).
Head and body with ~8 grey-brown irregular bars that have numerous pales spots superimposed on them; midlateral row of small elongate dark spots in middle of each dark bar.
Size: reaches 4.5 cm.
Inhabits tide pools and shallow rocky reefs.
Depth: 0-10 m.
The mouth of the Gulf of California to Colombia.
A species that has passed through the Panama Canal to the Atlantic.
High Resolution Map Download
- Salinity
-
- Brackish
- Non Marine
- Freshwater
- Inshore/Offshore
-
- Inshore Only
- Inshore
- Water Column Position
-
- Bottom
- Bottom only
- Habitat
-
- Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
- Reef associated (reef + edges-water column & soft bottom)
- Rocks
- Estuary
- Reef and soft bottom
- Freshwater
- Reef (rock/coral/oyster)
- Sand & gravel
- FishBase Habitat
-
- Reef Associated
- Feeding Group
-
- No Data
- Carnivore
- Diet
-
- Mobile benthic crustacea (shrimps/crabs)
- Mobile benthic gastropods/bivalves
- Data
- Mobile benthic worms
- Egg Type
-
- Benthic
- Pelagic larva
- No data
- Global Endemism
-
- Tropical Eastern Pacific (TEP) endemic
- East Pacific endemic
- All species
- Regional Endemism
-
- Continent
- 3 provinces (Cortez + Mexican + Panamic) endemic
- TEP endemic
- Continent only
- Continental TEP endemic
- All species
- Residency
-
- Resident
- Climate Zone
-
- Northern Tropical (Mexican Province to Nicaragua + Revillagigedos)
- Northern Subtropical (Cortez Province + Sinaloan Gap)
- Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
- IUCN Red List
-
- Listed
- Data deficient
- CITES
-
- Not listed
- Length Max
-
- 4.5
- Depth Range Min
-
- 0
- Depth Range Max
-
- 10
