Apristurus yangi, Yang’s longnose catshark

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Apristurus yangi White, Mana & Naylor, 2017

Yang’s longnose catshark
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Image of Apristurus yangi (Yang’s longnose catshark)
No image available for this species;
drawing shows typical species in Pentanchidae.

Classification / Names Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

Élasmobranches (requins et raies) (sharks and rays) > Carcharhiniformes (Ground sharks) > Pentanchidae (Deepwater catsharks)
Etymology: Apristurus: Greek, a = without + Greek, pristis = saw + Greek, oura = tail (Ref. 45335);  yangi: Named for Dr Lei Yang (extensive molecular phylogenetic work on sharks and rays contributed toward an improved understanding of their alpha taxonomy and phylogenetic relationships).

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

; marin bathydémersal; profondeur 630 - 786 m (Ref. 116167), usually - m (Ref. ).   Tropical; 0°C -

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

Western Central Pacific: Papua New Guinea.

Taille / Poids / Âge

Maturity: Lm ?  range ? - ? cm
Max length : 43.7 cm TL (female)

Description synthétique Morphologie | Morphométrie

This long-snouted species is distinguished by the following set of characters: head long and narrow, head length 23.5-23.8% TL; interorbital space 5.8-6.7% TL; very elongate snout, preoral length 12.4-12.7% TL; preorbital length 12.6-12.9% TL; wide mouth, its width 7.9-8.6% TL; pelvic-anal space 3.2-4.0% TL; anal fin is relatively large, base length 14.9-15.4% TL; anal-fin posterior margin 11.0% TL; prepectoral length is relatively long, about 22.3-23.5% TL; labial furrows long and not confined to mouth corners, uppers 3.7-3.8% TL; absence of enlarged denticles on upper or lower caudal fin; duodenum of intestine very short, 8 intestinal spiral valves; tip of snout blackish; 32-33 monospondylous centra; 38 precaudal-diplospondylous vertebrae; precaudal centra 70-71; females mature to adult by 43.7 cm TL; egg case is small (about 5.9 cm long), with faint longitudinal striations (Ref. 116167).

Biologie     Glossaire (ex. epibenthic)

The pregnant female individual caught contained a single egg capsule (Ref. 116167).

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

White, W.T., R.R. Mana and G.J.P. Naylor, 2017. Description of a new species of deepwater catshark Apristurus yangi n. sp. (Carcharhiniformes: Pentanchidae) from Papua New Guinea. Zootaxa 4320(1):025-040. (Ref. 116167)

Statut dans la liste rouge de l'IUCN (Ref. 124695)

  Préoccupation mineure (LC) ; Date assessed: 21 November 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless





Utilisations par l'homme

FAO - Publication: search | FishSource |

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Sources Internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | FishWatcher | CISTI | Catalog of Fishes: Genre, Espèce | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: génôme, nucléotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Arbre de Vie | Wikipedia: aller à, chercher | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00324 (0.00154 - 0.00678), b=3.09 (2.90 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Niveau trophique (Ref. 69278):  3.8   ±0.4 se; based on size and trophs of closest relatives
Résilience
Vulnérabilité (Ref. 59153):  Low to moderate vulnerability (34 of 100) .