Species: Acanthemblemaria atrata, Cocos barnacle-blenny
Acanthemblemaria atrata Hastings & Robertson, 1999
Cocos barnacle-blenny
Body elongate; short blunt head; spines on snout & under eye, top of head behind eyes covered with short spines; inner row of spines between eyes on a bony ridge; cirri on nostrils, over eyes (1 pair, with or without 1 branch), but not on nape; 2 rows of well-developed teeth on side of roof of mouth; dorsal XXII-XXV, 11-14; anal II, 23-26; pectoral 12-14 (usually 13) rays.
Color variable; body varies from dark brown, to black to translucent with bars; small blue spots on head & body; top lip with 1-2 pairs of iridescent blue spots; mating males with black wash over head, body & fins, with red lips, snout and upper front of dorsal fin.
Size: 3.8 cm.
Habitat: barnacles and worm tubes on rocky shores.
Depth: 0-30 m.
Only at Cocos Island.
High Resolution Map Download
- Salinity
-
- Marine
- Marine Only
- Inshore/Offshore
-
- Inshore Only
- Inshore
- Water Column Position
-
- Bottom
- Bottom only
- Habitat
-
- Reef only
- Reef (rock/coral/oyster)
- Reef associated (reef + edges-water column & soft bottom)
- Rocks
- Barnacles & worm tubes
- FishBase Habitat
-
- Reef Associated
- Feeding Group
-
- Carnivore
- No Data
- Planktivore
- Diet
-
- Zooplankton
- Mobile benthic crustacea (shrimps/crabs)
- Pelagic fish eggs
- Data
- Egg Type
-
- Benthic
- Pelagic larva
- No data
- Global Endemism
-
- East Pacific endemic
- Tropical Eastern Pacific (TEP) endemic
- All species
- Regional Endemism
-
- TEP endemic
- TEP oceanic island (s) endemic
- Island (s) only
- Island (s)
- Cocos Island endemic
- All species
- Residency
-
- Resident
- Climate Zone
-
- Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
- IUCN Red List
-
- Vulnerable
- Listed
- CITES
-
- Not listed
- Length Max
-
- 3.8
- Depth Range Min
-
- 0
- Depth Range Max
-
- 30
