Actinopterygii (ray-finned fishes) > Scorpaeniformes
(Scorpionfishes and flatheads) > Liparidae
Etymology: Elassodiscus: Greek, elasson = smaller + Greek, diskos = disc shape (Ref. 45335); obscurus: From the latin obscurus - meaning dark (Ref. 10908).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 161 - 1773 m (Ref. 51661), usually 600 - 1290 m (Ref. 10908). Deep-water
Northwest Pacific: Sea of Okhotsk, northern Kuril Islands, southeastern Kamchatka.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 28.6 cm SL male/unsexed; (Ref. 10908)
Morphology | Morphometrics
soft rays: 63 - 68;
Vertebrae: 72 - 80. Two suprabranchial pores. Teeth simple, long, slightly convex rearward. Lower lobe of the pectoral fin long, contained 3-3.5 times in SL. Pectoral fin with a large notch; upper lobe is short, and does not reach to the origin of the anal fin. The rays of the lower lobe are approximately twice as long as those of the upper, reaching origin of the anal fin.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Chernova, N.V., 1998. Catalogue of the type specimens of snailfish (Liparidae, Scorpaeniformes) in the Zoological Institute of the Russian Academy of Sciences. J. Ichthyol. 38(9):730-746. (Ref. 35941)
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
): 1.6 - 3.1, mean 2.4 (based on 66 cells).
Phylogenetic diversity index (Ref. 82805
= 0.6250 [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
): 3.6 ±0.6 se; Based on size and trophs of closest relatives
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (38 of 100) .