Actinopteri (ray-finned fishes) > Perciformes/Cottoidei
(Sculpins) > Liparidae
Etymology: Psednos: Greek, psednos, -e, -on = rare (Ref. 45335); micruroides: From Barnard's original specific name micrurus, and used because of the similarity between the two species (Ref. 42989). More on author: Chernova.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 0 - 900 m (Ref. 42989). Deep-water
Northeast Atlantic: southeast of Greenland.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.1 cm SL male/unsexed; (Ref. 42989)
Morphology | Morphometrics
soft rays: 30;
Vertebrae: 43. Coronal pore present, 6th infraorbital pore absent, 3-4 pores in temporal canal; eye 22.7% HL, mouth terminal, and gill slit equal to eye diameter (Ref. 42989).
Caught in a midwater trawl (Ref. 42989). Maximum length based on a subadult specimen (Ref. 42989).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Chernova, N., 2001. A review of the genus Psednos (Pisces, Liparidae) with description of ten new species from the north Atlantic and southwestern Indian Ocean. Bull. Mus. Comp. Zool. 155(10):477-507. (Ref. 42989)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): -0.9 - 4.8, mean 1.2 °C (based on 274 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
): 3.1 ±0.5 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 (10 of 100) .