Shorefishes of the Eastern Pacific online information system

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Species: Acanthemblemaria exilispinus, Blunt-spine barnacle-blenny

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forehead weak spines
eye cirrus branched
body & lower head: white spots in dark mesh

Acanthemblemaria exilispinus Stephens, 1963

Blunt-spine barnacle-blenny

Body elongate; short blunt head; head spines weakly developed, in two triangular patches on frontal bones; top of head behind eyes smooth or serrate, but never with spines; spines also present on midline of snout; cirri on nostrils, over eyes (1 pair, bushy), but not on nape; 2 rows of well-developed teeth on side of roof of mouth; dorsal XXIII-XXIV, 14-16; anal II, 24-25; pectoral 13.

Head brownish with numerous small white spots on lower half; body brown on upper half, lower half yellowish, densely spotted with white; a row of dark brown blotches along middle of side and small whitish blotches on upper half of body.

Size: reaches 5.5 cm.

Inhabits empty worm and molluscs tubes on rocky reefs.

Depth: 1-5 m.

Costa Rica to Ecuador.

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  • Marine Only
  • Marine
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Bottom only
  • Reef only
  • Rocks
  • Reef (rock/coral/oyster)
  • Reef associated (reef + edges-water column & soft bottom)
  • Barnacles & worm tubes
FishBase Habitat
  • Reef Associated
Feeding Group
  • Carnivore
  • Planktivore
  • No Data
  • Pelagic fish eggs
  • Mobile benthic crustacea (shrimps/crabs)
  • Zooplankton
  • Data
Egg Type
  • No data
  • Benthic
  • Pelagic larva
Global Endemism
  • East Pacific endemic
  • Tropical Eastern Pacific (TEP) endemic
  • All species
Regional Endemism
  • Continental TEP endemic
  • Continent only
  • Continent
  • All species
  • Panamic province endemic
  • TEP endemic
  • Resident
Climate Zone
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 5.5
Depth Range Min
  • 1
Depth Range Max
  • 5