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Clarkichthys bilineatus (Clark, 1936)
FLAGTAIL WORMFISH
Flagtail worm-goby

Life   Vertebrata   Fish   Microdesmidae   Clarkichthys

Clarkichthys bilineatus
© Copyright Ross Robertson, 2006 · 12
Clarkichthys bilineatus

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Clarkichthys bilineatus
© Copyright Photographer/SFTEP, 2002 · 0
Clarkichthys bilineatus
Clarkichthys bilineatus
© Copyright Photographer/SFTEP, 2002 · 0
Clarkichthys bilineatus

Clarkichthys bilineatus
© Copyright Photographer/SFTEP, 2002 · 0
Clarkichthys bilineatus
Clarkichthys bilineatus
© Copyright Photographer/SFTEP, 2002 · 0
Clarkichthys bilineatus
español

Overview
Main identification features Body short, stubby, eel-like, with depth ~8% of standard length; tail (without fin) shorter than head and body; gill opening a small tube at pectoral base; teeth in 2 rows; nostrils tubular; lips not broad and fleshy; teeth chisel-like; dorsal fin origin over pectoral, XVII-XIX spines, 28-32 rays, first 2 spines short, close together; anal 2 spines, 28-31 rays; dorsal and anal fins not confluent with tail; pectoral 11-12 rays; tail 17 segmented rays; pelvic 1 spine, 3 rays; scales well separated, sparse on head and belly.

White to tan; a broad black stripe along midback from snout to top of tail; a broad black stripe along mid side extending from tip of mouth, covering both jaws, passing under eye to upper operculum and thence middle of tail fin; top and bottom edges of tail black.

Size: 6.5 cm.

Habitat: high-salinity tidepools, and rocky and coral habitat.

Depth: 0-10 m.

The tip of Baja California and Nayarit (Mexico) to Ecuador, and the Galapagos and Cocos.


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: 10 m.
Depth Range Min: 0 m.
Diet: zooplankton; mobile benthic crustacea (shrimps/crabs).
Eastern Pacific Range: Northern limit=24; Southern limit=-2; Western limit=-110; Eastern limit=-78; Latitudinal range=26; Longitudinal range=32.
Egg Type: Benthic; Pelagic larva.
Feeding Group: Carnivore.
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); Reef only.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 6.5 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
  • Clark, H.W., 1936., The Templeton Crocker Expedition of the California Academy of Sciences.1932. No. 29. New and noteworthy fishes., Proceedings of the California Academy of Sciences (Series 4), 4:21(29):383-396.
  • Dawson, C.E., 1974., A review of the Microdesmidae (Pisces: Gobioidea).1.Cerdale and Clarkichthys with descriptions of three new species., Copeia, 1974(2):409-448.
  • 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.
  • 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.
  • Rubio, E.A., 1986., Notas sobre la ictiofauna de la Isla de Gorgona, Colombia., Boletin Ecotropica. Univ. Bog. Jorge Tadeo Lozano, 13:86-112.
  • Thacker, C., 2000., Phylogeny of the wormfishes (Teleostei: Gobioidei: Microdesmidae)., Copeia, 2000:940-957.
  • Van der Heiden , A. M. and Findley, L. T., 1988., Lista de los peces marinos del sur de Sinaloa, México., Anales del Centro de Ciencias del Mar y Limnologia de la Universidad Autonoma Nacional de Mexico, 15:209-224.

Acknowledgements

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


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http://www.fishbase.org/Summary/speciesSummary.php?genusname=Clarkichthys&speciesname=bilineatus ---> http://192.134.151.83/Summary/speciesSummary.php?genusname=Clarkichthys&speciesname=bilineatus
http://192.134.151.83/Summary/speciesSummary.php?genusname=Clarkichthys&speciesname=bilineatus ---> https://fishbase.mnhn.fr/Summary/speciesSummary.php?genusname=Clarkichthys&speciesname=bilineatus
https://fishbase.mnhn.fr/Summary/speciesSummary.php?genusname=Clarkichthys&speciesname=bilineatus ---> https://fishbase.mnhn.fr/summary/Clarkichthys-bilineatus.html
Clarkichthys bilineatus, Flagtail wormfish
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Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Clarkichthys bilineatus ( Clark , 1936 )

Flagtail wormfish Add your observation in Fish Watcher
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Clarkichthys bilineatus   AquaMaps   Data sources: GBIF OBIS
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Pictures | Google image Image of Clarkichthys bilineatus (Flagtail wormfish) Clarkichthys bilineatus
Picture by Robertson, R.

Classification / Names Common names | Synonyms | Catalog of Fishes( genus , species ) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Gobiiformes (Gobies) > Microdesmidae (Wormfishes) > Microdesminae
Etymology:

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; reef-associated; depth range 0 - 8 m (Ref. 28023 ). Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Eastern Central Pacific: off Cabo San Lucas, Baja California and off Nayarit. Mexico to northern Colombia and the Galapagos Islands.

Length at first maturity / Size / Weight / Age

Maturity: L m   ? , range 3 - ? cm
Max length : 6.2 cm SL male/unsexed; (Ref. 28023 )

Biology     Glossary (e.g. epibenthic)

Inhabits rocky, exposed tide pools and shallow rock and coral reef areas (Ref. 28023 ). Spawns upon reaching 3.4 cm SL (Ref. 28023 ). Oviparous (Ref. 56086 ).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Oviparous (Ref. 56086 ).

Main reference Upload your references | References | Coordinator : Randall, John E. | Collaborators

Grove, J.S. and R.J. Lavenberg , 1997. The fishes of the Galápagos Islands. Stanford University Press, Stanford, 863 p. (Ref. 28023 )

IUCN Red List Status (Ref. 130435 )

  Data deficient (DD)  ; Date assessed: 23 May 2007

CITES

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless





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FAO - Publication: search | FishSource |

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AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes : genus , species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome , nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go , Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201 ): 25.8 - 29.1, mean 28 °C (based on 160 cells). Phylogenetic diversity index (Ref. 82804 ):  PD 50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00102 (0.00046 - 0.00225), b=3.06 (2.88 - 3.24), in cm total length, based on all LWR estimates for this body shape (Ref. 93245 ). Trophic level (Ref. 69278 ):  3.5   ±0.5 se; based on size and trophs of closest relatives Fishing Vulnerability (Ref. 59153 ):  Low vulnerability (10 of 100). Nutrients (Ref. 124155 ):  Calcium = 173 [85, 341] mg/100g; Iron = 0.907 [0.499, 1.636] mg/100g; Protein = 18 [17, 19] %; Omega3 = 0.0917 [, ] g/100g; Selenium = 16.8 [7.1, 41.9] μg/100g; VitaminA = 348 [98, 1,245] μg/100g; Zinc = 2.38 [1.49, 3.62] mg/100g (wet weight);

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