Actinopterygii (ray-finned fishes) > Scorpaeniformes
(Scorpionfishes and flatheads) > Liparidae
Etymology: Psednos: Greek, psednos, -e, -on = rare (Ref. 45335); balushkini: Named for Dr. Arkady V. Balushkin in honor of his many contributions to the knowledge of Antarctic fishes, especially to the taxonomy of the suborder Notothenioidei. More on authors: Stein, Chernova & Andriashev.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 914 - 978 m (Ref. 42734). Deep-water
Southwest Pacific: Tasman Sea off New South Wales, Australia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 8.4 cm SL male/unsexed; (Ref. 42734)
Morphology | Morphometrics
soft rays: 43;
Vertebrae: 57. Caudal-fin rays 6; depth at occiput 111-123% HL; pectoral fin distinctly notched; 3 notched pectoral radials, with 2 fenestrae; gill opening extending ventrally in front of two pectoral rays; opercular lobe small but distinct; rays of lower pectoral-fin lobe shorter than in the upper; pyloric caeca of similar length, slightly dotted at bases; orobranchial cavity pale scarcely dotted, tongue pale, peritoneum light brown or paler; gill arches not dotted (Ref. 42734).
Found on the continental slope. Benthic (Ref. 75154).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Stein, D.L., N.V. Chernova and A.P. Andriashev, 2001. Snailfishes (Pisces: Liparidae) of Australia, including descriptions of thirty new species. Rec. Aust. Mus. 53:341-406. (Ref. 42734)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 3.3 - 5.7, mean 4.4 (based on 9 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.4 ±0.6 se; Based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (14 of 100) .