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Eptatretus chinensis Kuo and Mok, 1994
Life   Vertebrata   Fish   Myxinidae   Eptatretus


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Eptatretus chinensis
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Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Eptatretus chinensis Kuo & Mok , 1994

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Google image Image of Eptatretus chinensis No image available for this species;
drawing shows typical species in Myxinidae.

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

Myxini (hagfishes) > Myxiniformes (Hagfishes) > Myxinidae (Hagfishes) > Eptatretinae
Etymology: Eptatretus: hepta (Gr.), seven; tretos (Gr.), perforated (i.e., with holes), referring to seven gill apertures on what would later be described as Homea banksii (= E. cirrhatus ) [range within genus is 6-14 pairs of gill apertures]. ( See ETYFish ) ;   chinensis: -ensis , Latin suffix denoting place: China, specifically South China Sea off southeastern Taiwan, type locality. ( See ETYFish ) .

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

Marine; bathydemersal; non-migratory; depth range ? - 600 m (Ref. 31276 ). Deep-water

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

Western Pacific: South China Sea.

Size / Weight / Age

Maturity: L m   ?   range ? - ? cm
Max length : 37.5 cm TL male/unsexed; (Ref. 31276 )

Short description Morphology | Morphometrics

The species has 6 pairs of gill pouches and apertures. Gill apertures in a straight line, not crowded. Eyespots prominent. Fused cusps 3/3, 8-10 unicusps each row, total cusps 46-52. Slime pores: prebranchial 15-19 + branchial 4-5 + trunk 42-45 + tail 11-14. It is distinguished from the other 3 Asian species on Eptatretus by having 6 rather than 7 or 8 pairs of gill pouches (Ref. 51420 ).

Biology     Glossary (e.g. epibenthic)

Maximum depth from Ref. 58018.

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

Copulatory organ absent. The gonads of hagfishes are situated in the peritoneal cavity. The ovary is found in the anterior portion of the gonad, and the testis is found in the posterior part. The animal becomes female if the cranial part of the gonad develops or male if the caudal part undergoes differentiation. If none develops, then the animal becomes sterile. If both anterior and posterior parts develop, then the animal becomes a functional hermaphrodite. However, hermaphroditism being characterised as functional needs to be validated by more reproduction studies (Ref. 51361 ).

Main reference Upload your references | References | Coordinator | Collaborators

Fernholm, B. , 1998. Hagfish systematics. p. 33-44. In J.M. Jørgensen, J.P. Lomholt, R.E. Weber and H. Malte (eds.) The biology of hagfishes. Chapman & Hall, London. 578 p. (Ref. 31276 )

IUCN Red List Status (Ref. 130435 )

  Data deficient (DD)  ; Date assessed: 13 November 2009

CITES

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

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Tools

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Special reports

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Summary page | Point data | Common names | Photos

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 | National databases | 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=0.00204 (0.00092 - 0.00452), b=2.93 (2.73 - 3.13), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245 ). Trophic level (Ref. 69278 ):  4.1   ±0.7 se; based on size and trophs of closest relatives Resilience (Ref. 120179 ):  Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100). Fishing Vulnerability (Ref. 59153 ):  Low to moderate vulnerability (28 of 100).

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Updated: 2024-03-29 16:01:33 gmt
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