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Chaenopsis coheni Böhlke, 1957
Life   Vertebrata   Fish   Chaenopsidae   Chaenopsis

Chaenopsis coheni
© Copyright Photographer/SFTEP, 2002 · 0
Chaenopsis coheni

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Main identification features
  • snout long; head spotted
  • dorsal fin has 28-30 rays, no ocellus, dark margin
  • front roof mouth - no teeth;tongue short
  • operculum edge - dark above, spots below
  • anal fin margin dark
Body very elongate; tip of lower jaw projecting; no cirri over eyes; snout relatively long (24-27% of head length), broad, rounded; rear nostrils ~midway between front nostrils & eye; mouth very long, with eye before middle; tongue short, tip not extending forward past teeth on sides of roof of mouth; no teeth at front of roof of mouth; 11 spines on lower arm of 1st gill arch; dorsal XVIII-XX, 28-30, fin a little raised at front; anal II, 32-33; dorsal & anal broadly joined to round tail; 13 pectoral rays.

(Preserved fish) Body translucent with series of 8-9 irregular blotches along mid-flank; head covered with dark dots, larger below; opercular membrane dark above, spotted below; dorsal and anal fins with dark margins; no ocellus on dorsal fin.

Size: 7.2 cm.

Habitat: rubble habitats near reefs.

Depth: 1-40 m.

The western Gulf of California and near Puerto Vallarta on the mainland.

Abundance: Common.
Cites: Not listed.
Climate Zone: North Temperate (Californian Province &/or Northern Gulf of California); Northern Subtropical (Cortez Province + Sinaloan Gap); Northern Tropical (Mexican Province to Nicaragua + Revillagigedos).
Depth Range Max: 40 m.
Depth Range Min: 1 m.
Diet: bony fishes; mobile benthic crustacea (shrimps/crabs); zooplankton; pelagic fish eggs.
Eastern Pacific Range: Northern limit=30; Southern limit=21; Western limit=-114; Eastern limit=-106; Latitudinal range=9; Longitudinal range=8.
Egg Type: Benthic; Pelagic larva.
Feeding Group: Carnivore; Planktivore.
FishBase Habitat: Demersal.
Global Endemism: Tropical Eastern Pacific (TEP) endemic; East Pacific endemic; All species.
Habitat: Reef associated (reef + edges-water column & soft bottom); Sand & gravel; Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Soft bottom only; Barnacles & worm tubes.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 7.2 cm.
Regional Endemism: Continent; Continent only; TEP endemic; Continental TEP endemic; Cortez + Mexican provinces endemic; All species.
Residency: Resident.
Salinity: Marine; Marine Only.
Water Column Position: Bottom; Bottom only;

Scientific source:

Links to other sites

  • Böhlke, J.E., 1957., A review of the blenny genus Chaenopsis, and the description of a related new genus from the Bahamas., Proc. Acad. Nat. Sci. Phila., 109:81-103.
  • Böhlke, J.E., 1957., On the occurrence of garden eels in the western Atlantic, with a synopsis of the Heterocongrinae., Proc. Acad. Nat. Sci. Phila., 109:59-79.
  • Findley, L.T., Hendrickx, M.E., Brusca, R.C., van der Heiden, A.M., Hastings, P.A., Torre, J., 2003., Diversidad de la Macrofauna Marina del Golfo de California, Mexico., CD-ROM versión 1.0. Projecto de la Macrofauna del Golfo .  Derechos reservados de los autores y Conservación Internacional.
  • 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.
  • Galván-Magaña, F., Gutiérrez-Sánchez, F., Abitia-Cárdenas, L.A., Rodríguez-Romero, J., 2000., The distribution and affinities of the shore fishes of the Baja California Sur lagoons. In Aquatic Ecosystems of Mexico: Status and Scope. Eds. M. Manuwar, S.G. Lawrence, I.F. Manuwar & D.F. Malley. Ecovision World Monograph Series., Backhuys Publishers:383-398.
  • 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.
  • Thomson , D.A. , Findley , L.T. and Kerstitch, A.N., 2000., Reef fishes of the Sea of Cortez., University of Texas Press(Revised Ed.):353.
  • Villareal-Cavazos, A., Reyes-Bonilla, H., Bermúdez-Almada, B. and Arizpe-Covarrubias, O., 2000., Los peces del arrecife de Cabo Pulmo, Golfo de California, México: Lista sistemática y aspectos de abundancia y biogeografía., Rev. Biol. Trop., 48:413-424.


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