Classification / Names
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Perciformes/Cottoidei (Sculpins) >
Liparidae (Snailfishes)
Etymology: Psednos: Greek, psednos, -e, -on = rare (Ref. 45335); chathami: Named for its type locality, Chatham Rise..
Environment: milieu / climate zone / depth range / distribution range
Ecologia
marino batipelagico; distribuzione batimetrica ? - 1340 m (Ref. 92437). Deep-water
Distribuzione
Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri
Southwest Pacific: Chatham Rise East of New Zealand.
Size / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 8.7 cm SL maschio/sesso non determinato; (Ref. 92437)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Raggi dorsali molli (totale) : 52 - 53; Raggi anali molli: 45 - 46; Vertebre: 59. This species is distinguished by the following characters: dorsal fin rays 52-53, anal fin rays 45-46, pectoral fin rays 16-17, eye 26%, preA 157%, snout 17%, upper jaw ~50% HL; occipital hump prominent; teeth slender canines, premaxillary symphyseal gap very narrow, no mandibular symphyseal gap; opercle curved, posterior part almost horizontal; distance from mandible to end of body cavity 36% SL, 154% HL; coronal pore probably absent (Ref. 92437).
Life cycle and mating behavior
Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve
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)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Strumenti
Special reports
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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=0.00525 (0.00237 - 0.01161), b=3.15 (2.96 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
Resilienza (Ref.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).