Shorefishes of the Eastern Pacific online information system

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Species: Fowlerichthys avalonis, Roughbar frogfish, Roughjaw frogfish

All Families:   All Genera:   All Species:

fish lure = 2nd D spine, bait = cluster filaments
2nd D spine joined to head by membrane
base D - large ocellus
D&A not connected to C
Fowlerichthys avalonis (Jordan & Starks, 1907)
Roughjaw frogfish,    Roughbar frogfish
Body globular, somewhat compressed;  "fishing-pole" about equal to or slightly shorter than length of second dorsal spine, the "bait" (~ 40% of pole length) is an oval shaped cluster of numerous short vertically aligned appendages;  second dorsal spine attached to head by membrane; 3rd  dorsal spine movable, not bound down by skin; a very large, upward directed mouth; limb-like pectoral fins with an "elbow" joint, that fin broadly connected to body; a small round gill opening, below and behind pectoral base;tail base present, dorsal and anal fins not connected to tail fin; pelvic fins short, with all 5 rays branched; skin of body rough, covered with close-set, double-pointed spicules.
Color highly variable: yellow, orange, red, brown, or black, always with pronounced light and dark mottling; a large black spot surrounded by narrow orange ring on rear of base of dorsal fin.
Size: grows to 53 cm.
Habitat: usually found on flat sand or mud bottoms.
Depth: 0-311 m.
Southern California to the Gulf of California to Peru, Galapagos and Cocos.

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  • Marine
  • Marine Only
  • Inshore Only
  • Inshore
Water Column Position
  • Bottom
  • Bottom only
  • Reef associated (reef + edges-water column & soft bottom)
  • Rocks
  • Reef and soft bottom
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Sand & gravel
  • Reef (rock/coral/oyster)
FishBase Habitat
  • Demersal
Feeding Group
  • Data
  • Carnivore
  • Bony fishes
  • Mobile benthic crustacea (shrimps/crabs)
  • Data
Egg Type
  • Pelagic
  • No data
  • Pelagic larva
Global Endemism
  • All species
  • East Pacific endemic
  • Tropical Eastern Pacific (TEP) endemic
Regional Endemism
  • TEP endemic
  • Continent
  • Island (s)
  • All species
  • Continent + Island (s)
  • Resident
Climate Zone
  • Northern Subtropical (Cortez Province + Sinaloan Gap)
  • North Temperate (Californian Province &/or Northern Gulf of California)
  • South Temperate (Peruvian Province )
  • Northern Tropical (Mexican Province to Nicaragua + Revillagigedos)
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 53
Depth Range Min
  • 0
Depth Range Max
  • 311