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Perciformes/Cottoidei (Sculpins) >
Liparidae (Snailfishes)
Etymology: Psednos: Greek, psednos, -e, -on = rare (Ref. 45335); longiventris: Name refers to the particularly distinctive morphological feature of this species, the long abdominal cavity (Latin 'long' and 'venter', abdomen).
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin bathypélagique; profondeur ? - 1058 m (Ref. 92437). Deep-water
Southwest Pacific: north central Chatham Rise off New Zealand.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 7.7 cm SL (female)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
This species is distinguished by having the following characters: long abdomen, distance from mandible to end of abdominal cavity about 187% HL; angle of mouth 60°; teeth lanceolate, sharp; premaxillary symphyseal gap absent, mandibular symphyseal gap narrow; no coronal pore; pectoral fin rays 16 (7+4+5); radials 4 (1+1+1+1), R1, R2 notched; stomach black, intestine creamy white (Ref. 92437).
Body shape (shape guide): elongated; Cross section: compressed.
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Stein, D.L., 2012. A review of the snailfishes (Liparidae, Scorpaeniformes) of New Zealand, including descriptions of a new genus and sixteen new species. Zootaxa 3588:1-54. (Ref. 92437)
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=0.00525 (0.00238 - 0.01156), b=3.15 (2.96 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.3 ±0.5 se; based on size and trophs of closest relatives |
Résilience (Réf. 120179) |
Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.). |
Vulnérabilité de la pêche (Ref. 59153) |
Low vulnerability (11 of 100). 🛈 |