Actinopteri (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 author: Gilbert.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 0 - 1750 m (Ref. 58302), usually 500 - 1250 m (Ref. 86949). Deep-water; 62°N - 22°N, 177°W - 109°W
Eastern Pacific: Gulf of Alaska (Ref. 6876), off continental USA and Mexico.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 20.0 cm TL male/unsexed; (Ref. 4525); max. published weight: 370.00 g (Ref. 82347)
Morphology | Morphometrics
soft rays: 4. Characterized by having escal morphology: posterior escal appendage always branched; ratio between lengths of the dorsal and ventral forks of opercle 0.53-0.71; subopercle without indentation on posterodorsal margin; absence of epibranchial teeth; presence of teeth on pharyngobranchial II; upper jaw teeth 20-55, lower jaw teeth 24-51; teeth on vomer 4-8; dorsal fin rays 5-7; anal fin rays 4; pectoral fin rays 15-18; head length 34.2-44.5% SL; head depth 35.2-53.6% SL; premaxilla length 27.3-33-9% SL; length of lower jaw 38.6-51.8% SL; length of illicium 18.6-28.6% SL (Ref. 86949).
Feeds heavily on crustaceans (Ref. 4525). Males are not parasitic on females (Ref. 6885).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Hubbs, C.L., W.I. Follett and L.J. Dempster, 1979. List of the fishes of California. Occasional Papers of the California Academy of Sciences, San Francisco, California, USA, No. 133, 51 p. (Ref. 7182)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Estimates based on models
Preferred temperature (Ref. 115969
): 3.3 - 5.5, mean 4.1 °C (based on 37 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
): 3.1 ±0.30 se; based on food items.
Generation time: 3.7 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.3).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (33 of 100) .