Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
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.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathypelagic; depth range 830 - 960 m (Ref. 92437). Deep-water
Southwest Pacific: Chatham Rise, New Zealand.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 9.0 cm SL male/unsexed; (Ref. 92437)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 49 - 50; Anal soft rays: 43 - 44; Vertebrae: 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.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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: Version 2025-2)
Threat to humans
Harmless
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