Species: Opsanus dichrostomus, Bicolor toadfish


Opsanus dichrostomus Collette, 2001
Bicolor toadfish
Head and front of body moderately depressed; head narrow (19.5-30.1% of SL), with many barbells, especially around lower jaw; distance between eyes < eye diameter; 2 solid spines on upper opercle and 1 below those; teeth molar-like to pointed, but no canines; gill openings restricted to side, before pectoral fin base; dorsal fin with 3 solid spines, spiny and soft parts joined, soft part 23-25, rarely 26; anal fin 20-22 rays; dorsal and anal fins not joined to tail fin; pectoral rays usually 17-19, discrete glands between upper pectoral rays on inner surface of fin; a pore opening to surface at rear of base of pectoral fin; 2 lateral lines, no light organs; no scales.
Head and body mottled, indistinct bars on body; rear of lower part of mouth dark in adults: soft dorsal and anal fins with ~10 oblique bars; tail fin with ~6 dark bars; pectoral fin barred.
Reaches 15 cm.
Lives on reefs.
Depth range: 1-5 m.
The southern Gulf of Mexico and NW Caribbean.

High Resolution Map Download
- Salinity
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- Marine
- Marine Only
- Inshore/Offshore
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- Inshore
- Inshore Only
- Water Column Position
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- Bottom
- Habitat
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- Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
- Soft bottom only
- Reef (rock/coral/oyster)
- Reef associated (reef + edges-water column & soft bottom)
- FishBase Habitat
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- Reef Associated
- Feeding Group
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- Carnivore
- Data
- Diet
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- Mobile benthic gastropods/bivalves
- Bony fishes
- Mobile benthic worms
- Data
- Mobile benthic crustacea (shrimps/crabs)
- Egg Type
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- Benthic
- No pelagic larva
- Data
- Global Endemism
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- All species.
- Greater Caribbean endemic
- West Atlantic Endemic
- Regional Endemism
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- Continent
- Island (s)
- GC endemic
- Continent + Island (s)
- All species..
- Caribbean endemic
- Residency
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- Resident
- Climate Zone
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- Tropical (10-23N, Nicaragua / Cuba)
- IUCN Red List
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- Listed
- Least concern
- CITES
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- Not listed
- Length Max
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- 15
- Depth Range Min
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- 1
- Depth Range Max
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- 5