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Gillichthys mirabilis Cooper, 1864
LONGJAW MUDSUCKER
Long-jawed mud-sucker

Life   Vertebrata   Fish   Gobiidae   Gillichthys

Gillichthys mirabilis
© Copyright Photographer/SFTEP, 2002 · 0
Gillichthys mirabilis

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Gillichthys mirabilis
© Copyright Photographer/SFTEP, 2002 · 0
Gillichthys mirabilis
español

Overview
Main identification features
  • nape with scales
  • cheek - dark stripe
  • flank - row dark blotches
  • top jaw to gill opening
  • pectoral: top ray not free
Moderately elongate, body compressed; head large (>25% total length) broad, depressed; sensory papillae on head small, crowded, numerous (few, larger and scattered in G. seta); eyes small, far apart; jaws very long - lower extends 1/2 way to gill opening, upper reaches to pectoral fin in large adults (shorter in G. seta); preopercle covered with skin; teeth small, conical, in bands of 4-5 rows on each jaw; first dorsal fin low and rounded, with VI spines; anal fin short; tail rounded; pectoral broad, rounded, top ray not partly free from fin (free in G. seta); membrane between pelvic fin spines without side lobes; scales small, imbedded, rough in juveniles, mainly smooth in adults; lateral scales ~90; narrow strip of scales on top of nape (absent in G. seta); skin covered with thick mucous.

Brown to blue-black, mottled above, yellowish below; diffuse dark stripe along cheek, dark blotch on operculum; row of dark blotches midlaterally from operculum to tail base; soft dorsal fine oblique bars, other fins unmarked. Juveniles - 8 bars on body, black blotch at rear of first dorsal fin.

Size: 21 cm.

Habitat: burrows in shallow mud bottoms in tidal flats and bays, coastal lagoons.

Depth: 0-5 m.

California to central Baja and the upper and central Gulf of California.


Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: North Temperate (Californian Province &/or Northern Gulf of California); Northern Subtropical (Cortez Province + Sinaloan Gap).
Depth Range Max: 5 m.
Depth Range Min: 0 m.
Diet: mobile benthic worms; mobile benthic crustacea (shrimps/crabs).
Eastern Pacific Range: Northern limit=37; Southern limit=25; Western limit=-122; Eastern limit=-110; Latitudinal range=12; Longitudinal range=12.
Egg Type: Benthic; Pelagic larva.
Feeding Group: Carnivore.
FishBase Habitat: Demersal.
Global Endemism: TEP non-endemic; East Pacific endemic; All species.
Habitat: Estuary; Mud; 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: 21 cm.
Regional Endemism: Continent; Temperate Eastern Pacific, primarily; Tropical Eastern Pacific (TEP) non-endemic; California province, primarily; Continent only; All species.
Residency: Vagrant.
Salinity: Brackish; Non Marine; Freshwater.
Water Column Position: Bottom; Bottom only;


Names
Scientific source:

Links to other sites

References
  • Balart , E. F. , Castro-Aguirre , J. L. and De Lachica-Bonilla, F., 1997., Análisis comparativo de las comunidades ícticas de fondos blandos y someros de la Bahía de La Paz, B.C. S.. En Urbán Ramírez, J. y M. Ramírez Rodríguez (Eds.). La Bahía de La Paz investigación y conservación., Universidad Autónoma de Baja California Sur:177-188.
  • Barlow, G. W., 1961., Gobies of the genus Gillichthys, with comments on the sensory canals as a taxonomic tool., Copeia, 1961:423-437.
  • Birdsong , R. S. , Murdy , E. O. and Pezold, F. L., 1988., A study of the vertebral column and median fin osteology in gobioid fishes with comments on gobioid relationships., Bull. Mar. Sci., 42:174-214.
  • Castri-Aguirre, J.L., Espinoza-Pérez, H. and Schmitter-Soto, J.J., 2002., Lista sitemática, biogeográfica y ecológica de la ictiofauna estuarino lagunar y vicaria de México. En: Lozano-Vilano, M. L. (Ed.). Libro Jubilar en Honor al Dr. Salvador Contreras Balderas., Universidad Autonoma de Nuevo León:117-142.
  • Castro-Aguirre , J. L. and Balart, E. F., 1997., Contribución al conocimiento de la ictiofauna de fondos blandos y someros de la Ensenada de La Paz y Bahía de La Paz, B.C.S.. En Urbán Ramírez, J. y M. Ramírez Rodríguez (Eds.). La Bahía de La Paz investigación y conservación., Universidad Autónoma de Baja California Sur:139-150.
  • Castro-Aguirre, J.L., 1999., Ictiofauna estuarino-lagunar y vicaria de México., Editorial Limusa S.A. de C.V.: 1-629pp.
  • Cooper, J. G., 1864., On new genera and species of California fishes- No.III., Proceedings of the California Academy of Sciences (Series 1), 3:108-114.
  • Eschmeyer , W. N. , Herald , E. S. and Hamman, H., 1983., A field guide to Pacific coast fishes of North America from the Gulf of Alaska to Baja California. Peterson Field Guide Ser. 28., Houghton Mifflin:336pp.
  • 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.
  • 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.
  • Gilbert , C. H. and Scofield, N. B., 1898., Notes on a collection of fishes from the Colorado Basin in Arizona., Proc. U.S. Nat. Mus., 20:487-499.
  • Hubbs, C.L., 1916., Notes on the Marine Fishes of California., Univ. Calif. Pubs. Zool., 16:153-169.
  • Jordan , D.S. and Evermann, B.W., 1898., The fishes of North and Middle America: a descriptive catalogue of the species of fish-like vertebrates found in the waters of North America, north of the Isthmus of Panama. Part III., Bull. U.S. Nat. Mus., 47:2183-3136.
  • Jordan , D.S. and Gilbert, C.H., 1880., Notes on a collection of fishes from San Diego, California., Proc. U.S. Nat. Mus., 3:23-34.
  • 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.
  • Minckley, W.L., 2002., Fishes of the lowermost colorado river, its delta, and estuary: a commentary on biotic change. En: Lozano-Vilano, M. L. (Ed.). Libro Jubilar en Honor al Dr. Salvador Contreras Balderas., Universidad Autonoma de Nuevo León:63-78.

Acknowledgements

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


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