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Paraletharchus pacificus (Osburn and Nichols, 1916)
SAILFIN EEL
Pacific sailfin-eel

Life   Vertebrata   Fish   Ophichthidae   Paraletharchus

Paraletharchus pacificus
© Copyright Ross Robertson, 2006 · 12
Paraletharchus pacificus

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Paraletharchus pacificus
© Copyright Ross Robertson, 2006 · 12
Paraletharchus pacificus
Paraletharchus pacificus
© Copyright Gerald Allen, 2006 · 0
Paraletharchus pacificus
español

Overview
Main identification features
  • head: white + brown spots
  • body dark, belly white
  • dorsal fin white
  • no a
Tail tip a hard and finless point; body moderately elongate and laterally compressed; snout short, rounded at tip; eye relatively large: diameter = 1/2 length of lower jaw, 5.4-7.1% of head length; dorsal fin moderately developed, originating well forward on head, a short distance behind level of rear corner of mouth; pectoral and anal fins absent; anterior nostrils tubular; gill openings entirely under body, each with a pronounced pouch in front.

Head whitish with brown spots; remainder of body dark brown, nearly blackish except white ventrally and also with white dorsal fin.

Size: to 81 cm.

Habitat: sandy bottoms.

Depth: 0-35 m.

Central Gulf of California to Panama, Isla del Coco & (possibly) Malpelo.


Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: Northern Subtropical (Cortez Province + Sinaloan Gap); Northern Tropical (Mexican Province to Nicaragua + Revillagigedos); Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo).
Depth Range Max: 35 m.
Depth Range Min: 0 m.
Diet: mobile benthic crustacea (shrimps/crabs); bony fishes.
Eastern Pacific Range: Northern limit=27; Southern limit=4; Western limit=-112; Eastern limit=-79; Latitudinal range=23; Longitudinal range=33.
Egg Type: Pelagic; Pelagic larva.
Feeding Group: Carnivore.
FishBase Habitat: Demersal.
Global Endemism: Tropical Eastern Pacific (TEP) endemic; East Pacific endemic; All species.
Habitat: Sand & gravel; Soft bottom only; Soft bottom (mud, sand,gravel, beach, estuary & mangrove).
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 81 cm.
Regional Endemism: Island (s); Continent; Continent + Island (s); TEP endemic; All species.
Residency: Resident.
Salinity: Marine; Marine Only.
Water Column Position: Bottom; Bottom only;


Names
Scientific source:

Links to other sites

References
  • 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 III. Vertebrados - Parte 2., FAO3:1201-1813.
  • Lopez , M. I. and Bussing, W. A., 1982., Lista provisional de los peces marinos de la Costa Rica., Revista de Biologia Tropical, 30(1):5-26.
  • Love, M.S., Mecklenburg, C.W., Mecklenburg, T.A., Thorsteinson, L.K., 2005., es of the West Coast and Alaska: a checklist of North Pacific and Artic Ocena species from Baja California to the Alaska-Yukon border., U.S. Department of the Interior, U.S. Geological Survey, Biological Resources Division, 288pp.
  • McCosker, J.E., 1974., A revision of the ophichthid eel genus Letharchus., Copeia, 1974:619-629.
  • Osburn , R. C. and Nichols, J. T., 1916., Shore Fishes Collected by the 'Albatross' Expedition in Lower California with Descriptions of New Species., Bull. Amer. Mus. Nat. Hist., 35:139-181.
  • Schultz , L.P. and Barton, O., 1960., A redescription of Letharchus pacificus, a snake eel from the eastern Pacific ocean., Copeia, 1960:351-353.
  • 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.

Acknowledgements

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


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