Shorefishes of the Eastern Pacific online information system

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Species: Acanthemblemaria mangognatha, Revillagigedos barnacle-blenny

All Families:   All Genera:   All Species:

rear top head spiny
eye cirrus branched or not
iris yellow
lower jaw: yellow & red
front D black/black spot
body: row dark spots & blotches

Acanthemblemaria mangognatha Hastings & Robertson, 1999

Revillagigedos barnacle-blenny

Body elongate; short blunt head; top of head behind eyes covered with short spines, inner row between eyes on a bony ridge; spines on edge of and under eye, and on snout; cirri on nostrils, over eyes (1 pair, unbranched to deeply branched), but not on nape; 2 rows of well-developed teeth on side of roof of mouth; dorsal XXIII-XXV, 12-14; anal II, 24-27; pectoral 13.

Color variable; body often with series of brown blotches along midline, with 2 similar blotches on cheek; lower jaw yellow-orange at front, reddish purple at rear; small blue spots often on head & body; iris with orange or yellow inner ring; mating males black, except for orange lower jaw and spot on cheek.

Size: 4 cm.

Habitat: barnacles and worm tubes on rocky shores.

Depth: 0-10 m.

Endemic to the Revillagigedo Islands.

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  • Marine Only
  • Marine
  • Inshore Only
  • Inshore
Water Column Position
  • Bottom
  • Bottom only
  • Rocks
  • Reef only
  • Barnacles & worm tubes
  • Reef associated (reef + edges-water column & soft bottom)
  • Reef (rock/coral/oyster)
FishBase Habitat
  • Reef Associated
Feeding Group
  • Planktivore
  • No Data
  • Carnivore
  • Zooplankton
  • Mobile benthic crustacea (shrimps/crabs)
  • No Data
  • Pelagic fish eggs
Egg Type
  • Pelagic larva
  • No data
  • Benthic
Global Endemism
  • All species
  • Tropical Eastern Pacific (TEP) endemic
  • East Pacific endemic
Regional Endemism
  • Island (s) only
  • TEP oceanic island (s) endemic
  • All species
  • Island (s)
  • Revillagigedo Islands endemic
  • TEP endemic
  • Resident
Climate Zone
  • Northern Tropical (Mexican Province to Nicaragua + Revillagigedos)
IUCN Red List
  • Listed
  • Vulnerable
  • Not listed
Length Max
  • 4
Depth Range Min
  • 0
Depth Range Max
  • 10