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); delawarei: Named for the vessel that collected it, NOAA ship DELAWARE II..
More on authors: Chernova & Stein.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range 10 - 1000 m (Ref. 43481). Deep-water
Northwest Atlantic: Cape Cod, USA.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.5 cm SL male/unsexed; (Ref. 43481)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 36; Vertebrae: 42. Skin uniformly gray, head beneath skin black. Coronal pore present. Skin pale, peritoneum blackish-brown, mouth and gill cavity pale. Coronal pore present. Mouth oblique at angle approximately 45° to horizontal. Gill rakers unmodified. Temporal and coronal pores very large, distinctly larger than other pores. Pectoral fin low, insertion strongly oblique, base almost horizontal, fin ray direction more ventral than posterior (Ref. 43481).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Chernova, N.V. and D.L. Stein, 2002. Ten new species of Psednos (Pisces, Scorpaeniformes: Liparidae) from the Pacific and North Atlantic oceans. Copeia 2002(3):755-778. (Ref. 43481)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
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Estimates based on models
Preferred temperature (Ref.
123201): 7 - 12.5, mean 10.9 °C (based on 8 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 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): 3.2 ±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.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).