Species: Gobiosoma grosvenori, Rockcut goby

pores: opercle 2, preopercle 3
9 broad dark bars with dark central dashes

Gobiosoma grosvenori (Robins, 1964)
Rockcut goby
Body robust; head rounded, broader than deep, somewhat depressed; snout blunt; anterior nostril a short tube, posterior a raised rim; 1 pore between eyes; 2 pores over opercle; 3 preopercular pores;mouth small, a little under snout; upper lip separated from snout by a groove along its top edge; teeth in 4 rows in upper jaw, 3 in lower jaw, outer row of teeth enlarged in upper and lower; no teeth on roof of mouth; tongue truncate to slightly bilobed; gill membranes broadly joined to body under throat, with 5 rays; dorsal fin VII (none filamentous) + I, 9; length of 2nd dorsal base > distance from 2nd dorsal base to tail fin; anal fin I, 8 (7-8); pectoral fin 17 (16-18) elongate reaching to origin of 2nd dorsal fin; pelvic I, 5, fins almost completely separate, shape elongate, anterior membrane of fin very small, fin extends ¾ distance to anus; caudal fin segmented 17, rounded; scaled from tail fin base to pectoral fin, with a narrow tongue of scales on the front body; upper narrow naked area from upper pectoral fin base to origin of second dorsal fin; lower narrow naked area from lower pectoral fin base to anal-fin origin; four very rough scales at base of tail fin; scales in longitudinal series 31-35; scales easily shed; no lateral line.
Tan; mid-side with 9 dark bars from the tail fin to the base of the pectoral fin, a row of dark dashes in centers of the dark bars along the flank center; narrow whitish interspaces between those bars; pectoral fin base covered by scattered dark spots, some concentrated in a poorly organized spot on upper fin base; pelvic fin with numerous spots; base of the gill membrane black, forming a broad dark "V" or "Y" on the throat; anal fin with a broad dark stripe; tail- and dorsal fins unmarked or without a consistent pattern.
Size: 3.0 cm.
Habitat - Found in open shallow shore waters with scattered coral, rubble, rocks, open sandy areas and weed beds.
Depth range: 1-5 m.
Florida to the S Caribbean.

High Resolution Map Download
- Salinity
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- Marine
- Brackish
- Inshore/Offshore
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- Inshore Only
- Inshore
- Water Column Position
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- Bottom
- Habitat
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- Sand & gravel
- Reef (rock/coral/oyster)
- Submerged vegetation
- Reef associated (reef + edges-water column & soft bottom)
- Estuary
- Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
- Reef and soft bottom
- Rocks
- FishBase Habitat
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- Reef Associated
- Feeding Group
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- Carnivore
- Data
- Diet
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- Mobile benthic worms
- Mobile benthic crustacea (shrimps/crabs)
- Mobile benthic gastropods/bivalves
- Data
- Egg Type
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- Data
- Benthic
- Pelagic larva
- Global Endemism
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- All species.
- West Atlantic Endemic
- Greater Caribbean endemic
- Regional Endemism
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- Continent
- GC endemic
- Continent + Island (s)
- All species..
- Island (s)
- Residency
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- Resident
- Climate Zone
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- Tropical (10-23N, Nicaragua / Cuba)
- Equatorial (0-10N, Costa Rica / Venezuela)
- Subtropical (23-35N, Florida / Carolinas / Bermuda)
- IUCN Red List
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- Listed
- Least concern
- CITES
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- Not listed
- Length Max
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- 3
- Depth Range Min
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- 1
- Depth Range Max
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- 5