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Acanthemblemaria stephensi Rosenblatt and McCosker, 1988
MALPELO BARNACLE BLENNY
Life   Vertebrata   Fish   Chaenopsidae   Acanthemblemaria

Acanthemblemaria stephensi
© Copyright Ross Robertson, 2006 · 12
Acanthemblemaria stephensi

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Acanthemblemaria stephensi
© Copyright Ross Robertson, 2006 · 12
Acanthemblemaria stephensi
espaņol

Overview
Main identification features
  • head black, forehead and lips red
  • dorsal fin margin red
  • body: blue dots + red blotches
Malpelo barnacle-blenny

Dorsal rays XXII-XXV, 11-13 (usually XXIV, 12), total dorsal elements 34-37; anal rays II, 24-25; pectoral rays 13; bony spines on head well developed forming diamond-shaped patch above eye; spines and bony knobs also present between eyes and on snout; a single unbranched cirrus above each eye.

Translucent blue grey with bright red bars on lower half of body and corresponding diffuse red spots or blotches on upper half; a midlateral row of horizontally elongate white marks; head and body covered with numerous small, light blue spots; males with dark bluish black head, a bright red anterior dorsal fin with a black spot, red lips, and red cirri.

Size: reaches 5 cm.

Inhabits empty barnacles and worm or mollusc tubes on rocky reefs.

Depth: 0-10 m.

Known only from Isla Malpelo.


Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo).
Depth Range Max: 10 m.
Depth Range Min: 0 m.
Diet: mobile benthic crustacea (shrimps/crabs); zooplankton; pelagic fish eggs.
Eastern Pacific Range: Northern limit=5; Southern limit=4; Western limit=-82; Eastern limit=-82; Latitudinal range=1; Longitudinal range=1.
Egg Type: Benthic; Pelagic larva.
Feeding Group: Carnivore; Planktivore.
FishBase Habitat: Reef Associated.
Global Endemism: Tropical Eastern Pacific (TEP) endemic; East Pacific endemic; All species.
Habitat: Reef associated (reef + edges-water column & soft bottom); Rocks; Reef (rock &/or coral); Barnacles & worm tubes; Reef only.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 5 cm.
Regional Endemism: Island (s) only; Island (s); TEP endemic; TEP oceanic island (s) endemic; Malpelo Island endemic; All species.
Residency: Resident.
Salinity: Marine; Marine Only.
Water Column Position: Bottom; Bottom only;


Names
Scientific source:

Links to other sites

References
  • Fischer , W. , Krup , F. , Schneider , W. , Sommer , C. , Carpenter , K. E. and Niem, V. H., 1995., Guia FAO para la Identificacion de Especies de para los fines de la Pesca. Pacifico Centro-Oriental. Volumen II. Vertebrados - Parte 1., FAO2:647-1200.
  • Hastings , P.A. and Robertson, D.R., 1999., Acanthemblemaria atrata and Acanthemblemaria mangognatha, New Species of Eastern Pacific Barnacle Blennies (Chaenopsidae) from Isla del Coco, Costa Rica, and Islas Revillagigedo, Mexico, and their Relationships with other Barnacle Blennies., Revue Francaise de Aquariologie, 25:107-118.
  • Hastings, P.A., 2000., Biogeography of the Tropical Eastern Pacific: distribution and phylogeny of chaenopsid fishes., Zoological Journal of the Linnean Society, 128:319-335.
  • Rosenblatt , R.H. and McCosker, J.E., 1970., A key to the genera of the ophichthid eels, with descriptions of two new genera and three new species from the eastern Pacific., Pac. Sci., 24:494-505.
  • Rosenblatt , R.H. and McCosker, J.E., 1988., A new species of Acanthemblemaria from Malpelo Island, with a key to the Pacific members of the genus (Pisces: Chaenopsidae)., Proc. Calif. Acad. Sci., 45:103-110.

Acknowledgements

I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.


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