Actinopterygii (ray-finned fishes) > Lophiiformes
(Anglerfishes) > Oneirodidae
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). More on authors: Regan & Trewavas.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 360 - 1000 m (Ref. 86949). Deep-water
Atlantic and Pacific: tropical and subtropical waters.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 15.9 cm (female)
Morphology | Morphometrics
soft rays: 4 - 5. Distinguishing characteristics: esca with tapering, internally pigmented, anterior appendage, becoming proportionally longer with growth, and usually bearing 2 short, unpigmented filaments on anterior margin near distal tip; unpaired, unpigmented filamentous medial escal appendage normally consisting of numerous branched filaments, flanked on each side by a similar filamentous medial appendage; terminal escal papilla truncated, sometimes with distal spot of dark pigment; posterior escal appendage is laterally compressed and crescent-shaped, sometimes pigmented on distal margin; unpigmented filamentous lateral escal appendage on each side; absence of anterolateral escal appendages; epibrachial I bearing 1-5 teeth; pharyngobranchial II toothed; upper jaw with 29-180 teeth, lower jaw with 53-160 teeth; vomer with 4-10 teeth (Ref. 86949).
Also mesopelagic (Ref. 10524).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Bertelsen, E., 1990. Oneirodidae. p. 498-507. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post, and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 10524)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 2.9 - 6.4, mean 4.7 (based on 11 cells).
Phylogenetic diversity index (Ref. 82805
= 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
): 3.9 ±0.7 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (29 of 100) .