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Microdesmus intermedius S. E. Meek and S. F. Hildebrand, 1928
LONG-TAILED WORM-GOBY
Life   Vertebrata   Fish   Microdesmidae   Microdesmus

Microdesmus intermedius
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Microdesmus intermedius

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Overview
Main identification features
  • eye tiny, high
  • plain color
  • tail fin round
  • snout blunt;lips thick, with large flanges
  • pectoral 12 anal fin 45-52
Slender, wormlike, body height 3-9% of standard length; tail (without fin) distinctly longer than body and head, ~61-70% of standard length); head deep; eyes tiny, skin-covered, near top of head; snout blunt and square, lower jaw only a little projecting; lips thick, with fleshy folds, flanges at sides of corner of mouth; gill opening large, not tubular, longer than base of pectoral; pectoral 10-14 (usually 12) rays; dorsal and anal fins confluent with tail fin; dorsal 66-68 elements, origin over rear half of pectoral, spines evenly spaced; anal 45-52 elements; tail fin rounded, short - <3/4 head length; pelvics I, 3 shorter than pectorals; scales well separated; body and head scaly except for snout and lower jaw; scales with 31 radiating ridges.

(Preserved fish) uniform olive; tail slightly dusky, other fins clear.

Size: 11 cm.

Habitat: rocky shores.

Depth: 0-10 m.

Costa Rica to Panama.


Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo).
Depth Range Max: 10 m.
Depth Range Min: 0 m.
Diet: mobile benthic crustacea (shrimps/crabs); mobile benthic worms.
Eastern Pacific Range: Northern limit=10; Southern limit=8; Western limit=-85; Eastern limit=-79; Latitudinal range=2; Longitudinal range=6.
Egg Type: Benthic; Pelagic larva.
Feeding Group: Carnivore.
FishBase Habitat: Demersal.
Global Endemism: Tropical Eastern Pacific (TEP) endemic; East Pacific endemic; All species.
Habitat: Estuary; 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: 11 cm.
Regional Endemism: Continent; Continent only; TEP endemic; Continental TEP endemic; Panamic province endemic; All species.
Residency: Resident.
Salinity: Brackish; Non Marine.
Water Column Position: Bottom; Bottom only;


Names
Scientific source:

Links to other sites

References
  • 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.
  • 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.
  • 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.
  • 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.

Acknowledgements

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


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Microdesmus intermedius
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Microdesmus intermedius Meek & Hildebrand , 1928

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drawing shows typical species in Microdesmidae.

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

Teleostei (teleosts) > Gobiiformes (Gobies) > Microdesmidae (Wormfishes) > Microdesminae
Etymology: Microdesmus: Greek, mikros = small + Greek, desmos = link (Ref. 45335 ) .
More on authors: Meek & Hildebrand .

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

Marine; demersal. Tropical

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

Eastern Pacific: Panama.

Size / Weight / Age

Maturity: L m   ?   range ? - ? cm

Biology     Glossary (e.g. epibenthic)

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

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

Eschmeyer, W.N. and Fricke R. (eds.) , 2011. Catalog of fishes. Updated internet version of 05 May 2011. Catalog databases of CAS cited in FishBase (website). (Ref. 86870 )

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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Internet sources

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 | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804 ):  PD 50 = 0.5000   [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 ):  3.6   ±0.5 se; based on size and trophs of closest relatives Fishing Vulnerability (Ref. 59153 ):  Low vulnerability (10 of 100).

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