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Dysomma opisthoproctus Chen and Mok, 1995
Life   Vertebrata   Fish   Synaphobranchidae   Dysomma

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&pull 20q v5.145 20180528: Error 301 Moved Permanently http://taibnet.sinica.edu.tw/eng/taibnet_species_detail.php?gen=Dysomma&spe=opisthoproctus

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http://www.fishbase.org/Summary/speciesSummary.php?genusname=Dysomma&speciesname=opisthoproctus ---> https://www.fishbase.se/Summary/speciesSummary.php?genusname=Dysomma&speciesname=opisthoproctus
https://www.fishbase.se/Summary/speciesSummary.php?genusname=Dysomma&speciesname=opisthoproctus ---> https://www.fishbase.se/summary/Dysomma-opisthoproctus.html
Dysomma opisthoproctus

Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Dysomma opisthoproctus Chen & Mok , 1995

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Dysomma opisthoproctus   AquaMaps   Data sources: GBIF OBIS
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Google image Image of Dysomma opisthoproctus No image available for this species;
drawing shows typical species in Synaphobranchidae.

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

Actinopteri (ray-finned fishes) > Anguilliformes (Eels and morays) > Synaphobranchidae (Cutthroat eels) > Ilyophinae
Etymology: Dysomma: Greek, dys, dyo = two + Greek, omma = eye ;   opisthoproctus: Species name refers to its posterior positioned anus (Ref. 31561 ) .

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

Marine; demersal; depth range ? - 200 m (Ref. 31561 ).   Subtropical

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

Northwest Pacific: known only from Nan-Fong-Ao, northeastern Taiwan.

Size / Weight / Age

Maturity: L m   ?   range ? - ? cm
Max length : 42.1 cm TL male/unsexed; (Ref. 31561 )

Short description Morphology | Morphometrics

Vertebrae : 120. This species is distinguished by the following characters: with pectoral fin; dorsal-fin origin is in front of level of pectoral-fin base, predorsal length 10.6% TL; anus is posterior and far behind tip of pectoral fin, preanal length 35.1% TL; trunk is very long, trunk length 20.2% TL; intermaxillary teeth 2; compound teeth on vomer 4; multiple rows of small teeth on the upper jaw; a row of 7 or 8 large compound teeth on lower jaw; head pores: IO 4, SO 3, M 7, POP 0, AD 1; lateral-line pores: prepectoral 6, preanal 24, lateral line runs to more than 2 head length before caudal fin; 25 preanal vertebrae, 120 total vertebrae; colour of body brownish dorsally and paler ventrally with lower part of posterior margin of anal fin and caudal fin black (Ref. 31561 ).

Biology     Glossary (e.g. epibenthic)

Maximum depth reported based on a single specimen (Ref. 31561 ). Minimum depth from Ref. 58018.

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

Main reference Upload your references | References | Coordinator | Collaborators

Chen, Y.Y. and H.K. Mok , 1995. Dysomma opisthoproctus , a new synaphobranchid eel (Pisces: synaphobranchidae) from the northeastern coast of Taiwan. Copeia 1995(4):927-931. (Ref. 31561 )

IUCN Red List Status (Ref. 123251 )

    Not Evaluated  

CITES (Ref. 123416 )

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless




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Estimates based on models

Preferred temperature (Ref. 115969 ): 19.4 - 23.7, mean 21.7 °C (based on 40 cells). Phylogenetic diversity index (Ref. 82805 ):  PD 50 = 0.5001   [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 ):  3.9   ±0.4 se; based on size and trophs of closest relatives Resilience (Ref. 120179 ):  . Vulnerability (Ref. 59153 ):  Low vulnerability (22 of 100) .

Entered by Garilao, Cristina V. Modified by Kesner-Reyes, Kathleen Fish Forum
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