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Chlopsis apterus (Beebe and Tee-Van, 1938)
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Chlopsis apterus
© Copyright Ross Robertson, 2006 · 12
Chlopsis apterus

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Chlopsis apterus
© Copyright Photographer/SFTEP, 2002 · 0
Chlopsis apterus

Main identification features
  • dorsal fin origin well behind gill opening
  • snout - pale stripe
  • dark above, abruptly pale below
Snout-stripe false moray

Elongate, slightly compressed; snout bluntly pointed; front nostril tubular, points downward, rear nostril under eye, opens in top lip; mouth moderately large, extends behind eye; jaw teeth small, in 3 rows; 2 series of teeth on vomer; lateral line pores on head only; gill opening small, oval, lateral; pectoral fins absent; dorsal and anal fins well developed, continuous with tail; dorsal fin origin about 1 snout length behind gill opening; 134-138 vertebrae, 36-39 before anus.

Top half brown, abruptly changing to white below, contrast strong on head; prominent white stripe along snout before eye; narrow brown band along lower jaw.

Size: 25 cm.

Habitat: muddy bottom.

Depth: 80-130 m.

SW Gulf of California to Colombia.

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: 130 m.
Depth Range Min: 80 m.
Diet: mobile benthic worms; mobile benthic crustacea (shrimps/crabs); mobile benthic gastropods/bivalves; octopus/squid/cuttlefish.
Eastern Pacific Range: Northern limit=27; Southern limit=3; Western limit=-112; Eastern limit=-78; Latitudinal range=24; Longitudinal range=34.
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 (mud, sand,gravel, beach, estuary & mangrove); Soft bottom only.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 25 cm.
Regional Endemism: Continent; Continent only; TEP endemic; Continental TEP endemic; 3 provinces (Cortez + Mexican + Panamic) endemic; All species.
Residency: Resident.
Salinity: Marine; Marine Only.
Water Column Position: Bottom; Bottom only;

Scientific source:

Links to other sites

  • Beebe , W. and Tee-Van, J., 1938., Eastern Pacific expeditions of the New York Zoological Society, XV. Seven new marine fishes from Lower California., Zoologica, 23:299-312.
  • 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.
  • Lavenberg, R. J., 1988., Chlopsid eels of the eastern pacific with a new species and descriptions of larval forms., Bull. Mar. Sci., 42:253-264.
  • 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.


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