Species: Coryphopterus dicrus, Colon sand-goby, Colon goby
pelvics united in V, no front membrane
Coryphopterus dicrus Bohlke & Robins, 1960
Colon goby
Snout profile straight; head pores present, usually 1 between center of eyes, 1 pair between rear nostril; papillae on cheek in horizontal rows; mouth small, relatively horizontal; gill membranes broadly joined to body under throat, with 5 rays; dorsal fin VI + I, 9; length of 2nd dorsal base > distance from 2nd dorsal base to tail fin; anal fin I, 9; pectoral rays 18-20; pelvic fins I, 5, rays branched, 5th much shorter than 4th, fins fused to form a disc, rear margin indented, somewhat V-shaped, adults with no anterior membrane between spines; tail fin rounded; body covered with scales, scales large, rough, absent from head, 26 in lateral series; no lateral line.
Translucent grey: eye with dark radiating lines; dark bar below eye; often several dark lines back from eye; a dark spot immediately behind eye; no dark spot above operculum; 10-11 dark spots on midline from head to tail base; sides with numerous pink, tan and yellow spots of varying size; tail fin base with a dark bar joining 2 spots; pectoral fin base with two dark spots, dorsal and ventral, upper spot usually with a black streak extending onto fin rays; vertical fins without any pattern; small spots in membrane of ventral fin.
Reaches: 5 cm.
Depth: 1-56 m.
Habitat: Coral reefs; prefers rocky areas between individual coral colonies.
Georgia to the S Caribbean; also Brazil.
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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- Reef associated (reef + edges-water column & soft bottom)
- Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
- Reef and soft bottom
- Rocks
- Sand & gravel
- Reef (rock/coral/oyster)
- FishBase Habitat
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- Reef Associated
- Feeding Group
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- Omnivore
- Detritivore
- Data
- Diet
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- Data
- Benthic microalgae
- Detritus
- Mobile benthic crustacea (shrimps/crabs)
- Egg Type
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- Benthic
- Pelagic larva
- Data
- Global Endemism
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- Greater Caribbean non-endemic
- West Atlantic Endemic
- All species.
- Regional Endemism
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- Island (s)
- All species..
- Continent + Island (s)
- Also in Brazil
- Extends South of GC
- GC non-endemic
- Continent
- Residency
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- Resident
- Climate Zone
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- Tropical (10-23N, Nicaragua / Cuba)
- Subtropical (23-35N, Florida / Carolinas / Bermuda)
- Temperate (>35N)
- Equatorial (0-10N, Costa Rica / Venezuela)
- IUCN Red List
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- Listed
- Least concern
- CITES
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- Not listed
- Length Max
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- 5
- Depth Range Min
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- 1
- Depth Range Max
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- 56
