Shorefishes of the Greater Caribbean online information system

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Species: Bathygobius curacao, Notchtongue Goby, Notchtongue Frillfin Goby

All Families:   All Genera:   All Species:

nape scales - > at/ before preopercle edge
body: no diagnostic color pattern
top jaw long
pectoral 15-17
lateral scales 31-36

Bathygobius curacao (Metzelaar, 1919)

Notchtongue Goby, Notchtongue Frillfin Goby

Body robust; head broad, depressed, with pores; snout bluntly rounded; eyes large, close together; mouth moderate sized, relatively horizontal; top jaw long, 11.1 to 15% of SL; tongue with deep notch in front; jaw teeth in bands, without canines; gill membranes broadly joined to body under throat, with 5 rays; dorsal fins VI (none elongate) + I, 9 rays; length of 2nd dorsal base > distance from 2nd dorsal base to tail fin; anal I, 8; pelvic fins fused into a disc; pectoral 16-17( rarely15 or18), upper 3-4 rays free, as silky threads; tail round; scales large, rough, 31-36 along side, present on midline of nape to a line above or slightly before rear edge of preopercle; usually no scales on cheek or operculum; no lateral line.

Color highly variable; body uniform or with indistinct dark blotches, sometimes in a series of 6-7 along body; trunk with thin dark lines along scale rows but no diagnostic pattern of pigment spots or blotches; dorsal fins dark, with dark stripes, tail fin base with or without a smallish dark blotch; tail fin dark, with thin dark bars.

Reaches 7.5 cm.

Depth: 0-5 m.

Habitat: Sandy bottoms with turtle grass, generally in mangrove-lined tidal streams and generally in sheltered waters.

Distribution: Bermuda to the S Caribbean.

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  • Brackish
  • Marine
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Bottom only
  • Sand & gravel
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Submerged vegetation
  • Estuary
  • Mangrove
  • Reef (rock/coral/oyster)
  • Reef and soft bottom
  • Reef associated (reef + edges-water column & soft bottom)
FishBase Habitat
  • Demersal
  • Reef Associated
Feeding Group
  • Carnivore
  • Data
  • Data
  • Mobile benthic crustacea (shrimps/crabs)
Egg Type
  • Benthic
  • Data
  • Pelagic larva
Global Endemism
  • All species
  • Greater Caribbean endemic
  • West Atlantic Endemic
Regional Endemism
  • Continent
  • Continent + Island (s)
  • GC endemic
  • Island (s)
  • All species
  • Resident
Climate Zone
  • Equatorial (0-10N, Costa Rica / Venezuela)
  • Subtropical (23-35N, Florida / Carolinas / Bermuda)
  • Tropical (10-23N, Nicaragua / Cuba)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 7.5
Depth Range Min
  • 0
Depth Range Max
  • 5