Species: Risor ruber, Tusked goby
teeth protrude from closed mouth
Risor ruber (Rosen, 1911)
Tusked goby
Body elongate, head rounded, snout very blunt; mouth opens under snout; top jaw with large, out-curved canine teeth; bottom jaw with large incurved canines, central canines on both jaws project out from mouth; no teeth on roof of mouth; gill membranes broadly joined to body under throat, with 5 rays; dorsal fin VII, none elongate, + I, 10-11; length of 2nd dorsal base > distance from 2nd dorsal base to tail fin; anal fin I, 8-9; pectoral fins 16-17 (16-18); pelvic fins I, 5, disk complete with well developed front membrane; caudal fin rounded; body scaled rearwards of anal fin origin, 14-19 in lateral series, 4-5 very rough scales on tail fin base; no lateral line.
Head and body translucent to dark grey or reed-brown, with dense small dark brown dots; body sometimes with ~ 4-5 internal irregular brown bars; sometimes a few, elongate white spots along spinal column; median fins speckled with dark dots.
Reaches: 2.5 cm.
Habitat: Found in association with large sponges, generally barrel sponges.
Depth: 1-120 m.
Georgia to Brazil.
High Resolution Map Download
- Salinity
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- Marine
- Marine Only
- Inshore/Offshore
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- Inshore Only
- Inshore
- Water Column Position
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- Bottom
- Habitat
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- Reef only
- Reef (rock/coral/oyster)
- Reef associated (reef + edges-water column & soft bottom)
- Sponges
- FishBase Habitat
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- Reef Associated
- Feeding Group
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- Carnivore
- Planktivore
- Data
- Diet
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- Mobile benthic crustacea (shrimps/crabs)
- Zooplankton
- Data
- Mobile benthic worms
- Egg Type
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- Benthic
- Pelagic larva
- Data
- Global Endemism
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- All species.
- Greater Caribbean non-endemic
- West Atlantic Endemic
- Regional Endemism
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- Extends South of GC
- Extends North of GC
- Also in Brazil
- GC non-endemic
- Continent
- Island (s)
- Continent + Island (s)
- All species..
- Residency
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- Resident
- Climate Zone
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- Subtropical (23-35N, Florida / Carolinas / Bermuda)
- Tropical (10-23N, Nicaragua / Cuba)
- Equatorial (0-10N, Costa Rica / Venezuela)
- IUCN Red List
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- Listed
- Least concern
- CITES
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- Not listed
- Depth Range Min
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- 1
- Depth Range Max
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- 120
- Length Max
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- 2.5
