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Overview |
Main identification features
- head mottled;eye on side, not tiny
- irregular stripe - top back
- flank to anal fin origin: short bars
- chin - knob
Slender, wormlike, body height ~7% of standard length; head length ~11% of standard length; body and head marginally longer (by about length of snout) than tail (without fin); vertebrae: 25-27 in trunk, 27-29 in tail; eyes not tiny, on sides of head, not skin covered; snout rounded, chin with fleshy knob; lips not prominent, fleshy or thickened, with small flanges at sides; gill opening relatively large, not tubular, length about equal to pectoral base; teeth in 2 rows; dorsal and anal fins confluent with tail fin; dorsal XVI-XVIII evenly spaced spines, 36-41 rays, 53-58 elements in total, origin 1/3 pectoral fin length behind tip of the pressed-down fin; anal 32-37 rays; pectoral 11-13 rays, ~same length as pelvic; pelvic I, 3; tail fin rounded; scales small, non-overlapping; scales well separated; body and head scaled except for tip of lower jaws and tip of snout.
White to tan; dark blotches on top and sides of head; row of irregular dark blotches scattered along entire base of dorsal fin, sometimes forming a dark stripe; row of short, irregular dark oblique bars along mid-flank to level of origin of anal fin, grading into irregular smaller blotches and spots behind; markings often variable in shape and distribution.
Size: 8.8 cm.
Habitat: intertidal rock pools.
Depth: 0-5 m.
SW and SE Gulf of California to Panama, the Galapagos.
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: 5 m.
Depth Range Min: 0 m.
Diet: mobile benthic worms; mobile benthic crustacea (shrimps/crabs).
Eastern Pacific Range: Northern limit=27; Southern limit=-2; Western limit=-112; Eastern limit=-79; Latitudinal range=29; Longitudinal range=33.
Egg Type: Benthic; Pelagic larva.
Feeding Group: Carnivore.
FishBase Habitat: Demersal.
Global Endemism: Tropical Eastern Pacific (TEP) endemic; East Pacific endemic; All species.
Habitat: Mud; Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Soft bottom only.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 8.8 cm.
Regional Endemism: Island (s); Continent; Continent + Island (s); TEP endemic; All species.
Residency: Resident.
Salinity: Marine; Brackish.
Water Column Position: Bottom; Bottom only;
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References |
- 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., 1999., Ictiofauna estuarino-lagunar y vicaria de México., Editorial Limusa S.A. de C.V.: 1-629pp.
- Dawson, C.E., 1968., Eastern Pacific wormfishes, Microdesmus dipus Gunther and Microdesmus dorsipunctatus sp.nov., Copeia, 1968(1):512-531.
- 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.
- Günther, A., 1864., On some new species of Central American fishes., Proc. Zool. Soc. London, 14:227-232.
- 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.
- 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.
- Meek , S.E. and Hildebrand, S.F., 1928., The marine fishes of Panama. Part III., Field Mus. Nat. Hist., Zool. Ser. Publ., XV:709-1045.
- Myers , G.S. and Wade, C.B., 1946., New fishes of the families Dactyloscopidae, Microdesmidae and Antennariidae from the west coast of Mexico and the Galapagos Islands with a brief account of the use of rotenone fish poisons in Ichthyological collecting., Allan Hancock Pacific Expeditions, 9(6):151-179.
- Reid, E.D., 1936., Revision of the fishes of the family Microdesmidae, with descriptions of a new species., Proc. U.S. Nat. Mus., 84(3002):55-72.
- 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.
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Acknowledgements | |
I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.
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Following modified from FishBase
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http://www.fishbase.org/Summary/speciesSummary.php?genusname=Microdesmus&speciesname=dipus ---> http://192.134.151.83/Summary/speciesSummary.php?genusname=Microdesmus&speciesname=dipus
http://192.134.151.83/Summary/speciesSummary.php?genusname=Microdesmus&speciesname=dipus ---> https://fishbase.mnhn.fr/Summary/speciesSummary.php?genusname=Microdesmus&speciesname=dipus
&pull 20q v5.145 20180528: Error 501 Protocol scheme 'https' is not supported (LWP::Protocol::https not installed) https://fishbase.mnhn.fr/Summary/speciesSummary.php?genusname=Microdesmus&speciesname=dipus |
Updated: 2024-04-16 19:41:28 gmt
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