Shorefishes of the Eastern Pacific online information system

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Species: Gunterichthys bussingi, Bussing's brotula

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cheek- band scales
eyes large
LL 2 parts
C 16
rear nostril large
Gunterichthys bussingi Möller, Schwarzhans and Nielsen, 2004
Bussing's brotula
Head large, deep; snout pointed; body elongate, compressed, decreasing to slender tail base; eyes large (2.2-2.5 % of SL); relatively wide between eyes (5.5% of SL); front nostril low on snout, closer to lip than is rear nostril, rear nostril large (~ ½ eye diameter); lower edge of end of top jaw with a knob below, well before top rear corner; large pores along lower and upper jaws, and on top of head, pore at top corner of operculum tubular; 3 pores at lower corner of preoperculum; opercular spine weak, covered with skin; front of roof of mouth with 8 larger rear teeth, and granular teeth at front; jaws with inner row pointed teeth that become larger towards front, and outer rows of granular teeth; upper part of first gill arch with 2 small knobs and 1 long raker, lower part with 4 long rakers and 7 small knobs; dorsal fin 79-81 rays, its origin a little behind base of pectoral; anal 56-58 rays; dorsal and anal fins separate from tail fin; tail fin 16 rays; each pelvic fin consists of a filament inserted under rear part of gill cover and reaching 2/3 distance to anal fin; scales small, embedded, covering body; head with narrow vertical band of scales on cheek; lateral line in 2 parts, top part (16 pores) from above corner of opercle to just before anal fin origin, lower part (28 pores) from behind pectoral to rear end of body;  male copulatory organs with a penis and 1 pair of large pseudoclaspers at its base, all covered by a fleshy hood.
Color of preserved fish: Body light brown with many small black dots; eyes dark; dorsal, anal and tail fins purplish brown with white edges.
Reaches at least 6.8 cm.
Depth and habitat not known, but other species in the genus burrow in mud at depths less than 10 m.
Known only from Isla del Caño, Costa Rica.

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  • Marine Only
  • Marine
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom only
  • Bottom
  • Mud
  • Soft bottom only
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
FishBase Habitat
  • Demersal
Feeding Group
  • No Data
  • Carnivore
  • Mobile benthic worms
  • Mobile benthic crustacea (shrimps/crabs)
  • No Data
  • Mobile benthic gastropods/bivalves
Egg Type
  • No pelagic phase
  • No data
  • No pelagic larva
  • Live birth
Global Endemism
  • Tropical Eastern Pacific (TEP) endemic
  • East Pacific endemic
  • All species
Regional Endemism
  • Continent only
  • All species
  • Panamic province endemic
  • Continental TEP endemic
  • TEP endemic
  • Resident
Climate Zone
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
IUCN Red List
  • Not evaluated / Listed
  • Not listed
Length Max
  • 6.8
Depth Range Min
  • 0
Depth Range Max
  • 10