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Anguilliformes (Eels and morays) >
Ophichthidae (Snake eels) > Ophichthinae
Etymology: Apterichtus: From the Greek απτερόν (apteron), without fins, and ίχθύς (ichtus, more correctly written ichthys; masculine), fish; australis: Named australis in recognition of this species' distribution.
More on authors: McCosker & Randall.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin benthopélagique; profondeur 12 - 100 m (Ref. 75631). Tropical; 36°N - 34°S, 136°E - 109°W
Western Central Pacific: from Japan and the south Pacific island groups of Rapa, Pitcairn, Easter, New Zealand, and possibly Lord Howe.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 40.0 cm TL mâle / non sexé; (Ref. 75631); 57.0 cm TL (female)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Vertèbres: 162 - 167. An elongate, finless species of sphagebranchin ophichthine (sensu McCosker 1977) with: tail 45-57% and head 5-5.5% of total length; 3 preopercular pores and 3 pores in supratemporal canal; teeth conical, uniserial on jaws and vomer; body mostly pale in preservative, creamy dorsally and reddish-brown ventrally with light and dark head markings in life; and mean vertebral formula 82–164, total vertebrae 162–167. Anterior nostril
within an elongate tube, approximately 1/2 the diameter of the eye, its base about midsnout
and anterolaterally directed when viewed from above. Posterior nostril opens in outer lip beneath anterior margin of eye. Branchial openings low, ventral; branchial region modestly expanded, creating a bulbous region in posterior half of head (Ref. 75631).
Body shape (shape guide): eel-like; Cross section: circular.
Occurs over sand with associated rock and coral reef bottoms and collected with ichthyocides and dredges at depths between 12-100 m (Ref. 75631). Largest specimen examined, female at 57 cm TL (Ref. 101270).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Distinct pairing (Ref. 205).
McCosker, J.E. and Y. Hibino, 2015. A review of the finless snake eels of the genus Apterichtus (Anguilliformes: Ophichthidae), with the description of five new species. Zootaxa 3941(1):49-78. (Ref. 101270)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00093 (0.00041 - 0.00212), b=2.99 (2.79 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
4.0 ±0.7 se; based on size and trophs of closest relatives |
Résilience (Réf. 120179) |
Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.). |
Vulnérabilité de la pêche (Ref. 59153) |
Low to moderate vulnerability (33 of 100). 🛈 |