Teleostei (teleosts) >
Lophiiformes (Anglerfishes) >
Oneirodidae (Dreamers)
Etymology: Oneirodes: Greek, 'oneiros' = a dream or dreamlike or out of a dream (suggesting this fish is so strange and marvelous that can exist only in dreams) (Ref. 86949); plagionema: From the Greek plagios, oblique, and nema, thread, alluding to the oblique, anteroventrally directed anterior esca appendage.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathypelagic; depth range 1500 - 2000 m (Ref. 58018). Deep-water
East Indian Ocean: west coast of Tasmania. Western Central Pacific: Banda Sea. Southeast Pacific: Peru-Chile Trench.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 2.5 cm SL (female)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 5 - 6; Anal soft rays: 4. Escal morphology: anterior appendage narrow, elongate, and directed anteroventrally; medial appendages absent; posterior appendage minute; a pair of filamentous, branched, anterolateral appendages. Characterized further by having short subopercle, upper end rounded, without indentation on posterodorsal margin; ventral forks length of opercle 22.7-25.0% SL; ratio of lengths of dorsal and ventral forks of opercle 0.53-0.60; absence of epibranchial teeth; presence of teeth on pharyngobranchial II; upper jaw teeth 24-34, lower jaw teeth 31-38; teeth on vomer 6; dorsal fin rays 5-6; anal fin rays 4; pectoral fin rays 14-15; head length 33.7-45.8% SL; head depth 37.5-41.9% SL; premaxilla length 26.0-31.4% SL; length of lower jaw 36.5-45.8% SL; length of illicium 13.0-25.0% SL (Ref. 86949).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Pietsch, T.W. and J.A. Seigel, 1980. Certioid anglerfishes of the Philippine Archipelago, with descriptions of five new species. Fish. Bull. 78(2):379-398. (Ref. 26783)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
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Estimates based on models
Preferred temperature (Ref.
123201): 2.4 - 3.4, mean 2.7 °C (based on 250 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±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.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
