Classificazione / Nomi
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Perciformes/Cottoidei (Sculpins) >
Liparidae (Snailfishes)
Etymology: Psednos: Greek, psednos, -e, -on = rare (Ref. 45335); nemnezi: Named patterned from the initials NMNZ, the National Museum of New Zealand Te Papa Tongarewa.
Eponymy: An invented word, created from the initials NMNZ, the National Museum of New Zealand. (Ref. 128868), visit book page.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino batipelagico; distribuzione batimetrica 830 - 960 m (Ref. 92437). Deep-water
Southwest Pacific: Chatham Rise, New Zealand.
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 9.0 cm SL maschio/sesso non determinato; (Ref. 92437)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Raggi dorsali molli (totale) : 49 - 50; Raggi anali molli: 43 - 44; Vertebre: 58 - 59. This species is distinguished by the following characters: vertebrae 58-59; pectoral fin rays 16; pyloric caeca 6-10; prominent occipital hump; mouth angle about 60°; tiny and slender premaxillary teeth, sharp canines with slight shoulders, in a narrow band of about 40 oblique rows of up to 7 teeth each; short gill opening, above pectoral and in front of 1-2 rays, its length less than 1/5 HL; opercle a broad sword-like blade extending ventrally with a shallow curve posteriorly, its tip a sharp spine reaching posterior to pectoral fin base; symphyseal pores without raised rim, small, widely separated, fragile; absent coronal pore; rays of upper and lower pectoral fin lobes free for a significant proportion of their length; abdominal cavity length behind pectoral symphysis about 20% SL, almost equal to HL (Ref. 92437).
Body shape (shape guide): elongated; Cross section: compressed.
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | 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)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 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). |
Livello trofico (Fonte Biblio. 69278) |
3.4 ±0.5 se; based on size and trophs of closest relatives |
Resilienza (Fonte Biblio. 120179) |
Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.). |
Vulnerabilità della pesca (Ref. 59153) |
Low vulnerability (13 of 100). 🛈 |