FishBase | Search | All Living Things

Acanthemblemaria stephensi Rosenblatt and McCosker, 1988
Life   Vertebrata   Fish   Chaenopsidae   Acanthemblemaria

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

Click on map for details about points.

IDnature guides


    We parsed the following live from the Web into this page. Such content is managed by its original site and not cached on Discover Life. Please send feedback and corrections directly to the source. See original regarding copyrights and terms of use.
  • FishBase

80x5 - 240x3 - 240x4 - 320x1 - 320x2 - 320x3 - 640x1 - 640x2
Set display option above.
Click on image to enlarge.
Acanthemblemaria stephensi
© Copyright Ross Robertson, 2006 · 12
Acanthemblemaria stephensi

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.

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;

Scientific source:

Links to other sites

  • 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.


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

Supported by
go to Discover Life's Facebook group

Following modified from FishBase
   Top | See original --->
&pull 20q v5.145 20180528: Error 501 Protocol scheme 'https' is not supported (LWP::Protocol::https not installed)

Updated: 2021-09-26 03:01:04 gmt
FishBase | Search | All Living Things | Top
© Designed by The Polistes Corporation