Shorefishes of the Eastern Pacific online information system

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Species: Remora remora, Common remora

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sucker reaches tip pectoral, 16-22 plates
D 21-27
gill rakers 28-37
pelvics broadly attached to belly

Remora remora (Linnaeus, 1758)

Common remora

Elongate, moderately robust; distinctive flat head with sucking disc of 16-22 plates, reaches to about end of pectoral fin, its tiny spines blunt; jaws broad, lower jaw projecting, top jaw not protractile; simple teeth on jaws and center of roof of mouth; operculum without spines; gill rakers 28-37, 26-28 lower rakers; dorsal rays 21-27; anal rays 20-24; pectoral rays 25-32; pelvics long, pointed, under pectoral base, close-set, I, 5, broadly attached to belly; tail fin slightly concave to straight; scales small, smooth, imbedded.

Uniformly dark greyish brown.

Size: grows to 86 cm.

Habitat: commonly attached to sharks, sometimes in gill chamber, but also on large fishes, rays, and turtles.

Depth: 0-200 m?

Circumtropical; throughout the tropical eastern Pacific except for the upper Gulf of California.

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  • Marine Only
  • Marine
  • In & Offshore
  • Offshore
  • Inshore
Water Column Position
  • Mid Water
  • Near Surface
  • Water column only
  • Water column
  • Large fishes (billfishes, rays, sharks, etc), turtles & whales
FishBase Habitat
  • Pelagic
Feeding Group
  • Ectoparasite cleaner
  • Carnivore
  • Planktivore
  • Data
  • Zooplankton
  • No Data
  • Bony fishes
  • Ectoparasites
  • Pelagic crustacea
Egg Type
  • Pelagic larva
  • Pelagic
  • No data
Global Endemism
  • "Transpacific" (East + Central &/or West Pacific)
  • Circumtropical ( Indian + Pacific + Atlantic Oceans)
  • TEP non-endemic
  • East Pacific + Atlantic (East +/or West)
  • East Pacific + all Atlantic (East+West)
  • All species
  • Transisthmian (East Pacific + Atlantic of Central America)
Regional Endemism
  • Island (s)
  • Continent
  • All species
  • Continent + Island (s)
  • Tropical Eastern Pacific (TEP) non-endemic
  • Eastern Pacific non-endemic
  • Resident
Climate Zone
  • Northern Tropical (Mexican Province to Nicaragua + Revillagigedos)
  • Northern Subtropical (Cortez Province + Sinaloan Gap)
  • South Temperate (Peruvian Province )
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
  • North Temperate (Californian Province &/or Northern Gulf of California)
IUCN Red List
  • Not evaluated / Listed
  • Not listed
Length Max
  • 86
Depth Range Min
  • 0
Depth Range Max
  • 200