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Xyrias chioui McCosker, Chen & Chen, 2009

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

Teleostei (teleosts) > Anguilliformes (Eels and morays) > Ophichthidae (Snake eels) > Ophichthinae
Etymology: Xyrias: Greek, xyreo = that cuts like a knife (Ref. 45335);  chioui: Named for Captain Jiun-Shiun Chiou, who captured and donated this and other important eel specimens to the laboratory of the National Taiwan Ocean University..
More on authors: McCosker, Chen & Chen.

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

Marine; benthopelagic, usually 60 - 70 m (Ref. 82687). Subtropical; 24°N - 23°N

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

Pacific Ocean: Taiwan, Changbin, Taitang County (Ref. 82687).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 81.9 cm TL male/unsexed; (Ref. 82687)

Short description Identification keys | Morphology | Morphometrics

A moderately elongate species of Xyrias with tail 47% and head 12% of TL; dorsal-fin origin well behind pectoral tips; pectoral fin spatulate, elongate, 5.9 in HL; snout short, 2.7 in jaw; upper jaw elongate, 2.6 in HL; center of eye in anterior 40% of upper jaw; labial cirri and barbels absent; eyes not elevated; head pores minute, supraorbital pores 1+3, infraorbital pores 4+3, preoperculomandibular pores 2+6; teeth numerous, conical, needle-like, biserial on maxilla and uniserial on mandible and vomer; coloration in preservative pale ventrally, becoming brown dorsally, pectoral fins brown, median fins with a thin dark margin. Vertebral formula 19/61/126 (Ref. 82687).

Biology     Glossary (e.g. epibenthic)

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

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

McCosker, J.E., W.-L. Chen and H.-M. Chen, 2009. Comments on the snake-eel genus Xyrias (Anguilliformes: Ophichthidae) with the description of a new species. Zootaxa 2289:61-67. (Ref. 82687)

IUCN Red List Status (Ref. 130435)

  Data deficient (DD) ; Date assessed: 22 November 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

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 | 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):  PD50 = 0.5625   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00089 (0.00039 - 0.00204), b=3.00 (2.80 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.9   ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (53 of 100).