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Species: Acanthemblemaria castroi, Galapagos barnacle-blenny

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snout spiny
top head - ridges
head: yellow spots
iris: red
body: dark + 2 rows white blotches
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This Species (2) This Genus (10) Similar Species (1)

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Acanthemblemaria castroi Stephens & Hobson in Stephens, Hobson & Johnson, 1966

Galapagos barnacle-blenny

Body elongate; short blunt head; head spines well developed only on snout and on ring of bones bordering eye; top of head behind eyes with rough ridges, but weak spines sometimes present; cirri on nostrils, over eyes (1 pair, unbranched or branched), but not on nape; 2 rows of well-developed teeth on side of roof of mouth; dorsal XXIII-XXV, 12-14; anal II, 24-26; pectoral 13 (13-14).

Head grey brown above; cirri yellowish; throat and chin with yellow spots; iris red; body reddish brown with about 10 white spots (decreasing in size posteriorly) along middle of side; a second row of somewhat diamond-shaped pale marks along base of dorsal fin; head and body with numerous blue dots.

Size: grows to 6 cm.

Habitat: dwells in empty barnacle shells on rocky reefs.

In 1-25 m depth; they are seldom seen in the open.

Galápagos Islands.

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Species Data Create Report Export as Word File Export as Excel File
Salinity
  • Marine
  • Marine Only
Inshore/Offshore
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom only
  • Bottom
Habitat
  • Reef only
  • Barnacles & worm tubes
  • Rocks
  • Reef (rock/coral/oyster)
  • Reef associated (reef + edges-water column & soft bottom)
FishBase Habitat
  • Reef Associated
Feeding Group
  • Planktivore
  • Carnivore
  • No Data
Diet
  • No Data
  • Mobile benthic crustacea (shrimps/crabs)
  • Pelagic fish eggs
  • Zooplankton
Egg Type
  • Pelagic larva
  • No data
  • Benthic
Global Endemism
  • All species
  • Tropical Eastern Pacific (TEP) endemic
  • East Pacific endemic
Regional Endemism
  • Island (s)
  • Island (s) only
  • TEP endemic
  • Galapagos Islands endemic
  • All species
  • TEP oceanic island (s) endemic
Residency
  • Resident
Climate Zone
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
IUCN Red List
  • Vulnerable
  • Listed
CITES
  • Not listed
Length Max
  • 6
Depth Range Min
  • 1
Depth Range Max
  • 25