Shorefishes of the Greater Caribbean online information system

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Species: Gymnachirus nudus, Flabby Sole, Nude Sole

All Families:   All Genera:   All Species:

eye-side cirri short/absent
body bars < width pale interspaces
accessory LLs: usually > 7, 3rd - 34-44 pores
complete bars: body ~15-18; C 3-4

Gymnachirus nudus Kaup, 1858

Flabby Sole, Nude Sole

Body oval; eyes small, on right side; snout rounded; mouth small, arched, a little below snout; lips fleshy; rear edge of preopercle covered with skin; gill openings wide, united before pelvic fins; dorsal origin ~before level of eye; pelvic on eye side fused to anal; pectorals present or absent; lateral line from head to tail, straight, with 7-10 (usually > 7) accessory sensory lines at right angles to main line on right side; 3rd accessory LL 34-44 (26-59) pores; no scales, body covered with loose skin, eye side with or without short cirri in adults.

Eye side of adults with 13-21 (usually 15-18) dark narrow (3/4 width of pale interspaces) complete crossbars plus partial cross bars (often dotted) across body and dorsal and anal fins; ends of cross bars joined on dorsal and anal fins by a partial to complete dark line; tail with 3-4 complete crossbars; juveniles very dark body and fins on both sides.

Reaches 20 cm.

Lives on soft bottoms.

Depth range: 2-130 m.

Campeche (N Yucatan) to Brazil.

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  • Brackish
  • Marine
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Sand & gravel
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Soft bottom only
  • Mud
  • Reef (rock/coral/oyster)
  • Reef associated (reef + edges-water column & soft bottom)
FishBase Habitat
  • Demersal
  • Reef Associated
Feeding Group
  • Carnivore
  • Data
  • Data
  • Bony fishes
  • Mobile benthic crustacea (shrimps/crabs)
  • Mobile benthic gastropods/bivalves
  • Mobile benthic worms
Egg Type
  • Data
  • Pelagic
  • Pelagic larva
Global Endemism
  • All species
  • Greater Caribbean non-endemic
  • West Atlantic Endemic
Regional Endemism
  • Also in Brazil
  • Continent
  • Continent + Island (s)
  • Continental primarily
  • Extends South of GC
  • GC non-endemic
  • Island (s)
  • All species
  • Resident
Climate Zone
  • Equatorial (0-10N, Costa Rica / Venezuela)
  • Tropical (10-23N, Nicaragua / Cuba)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 20
Depth Range Min
  • 2
Depth Range Max
  • 130