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).
Eponymy: William Francis Thompson (1888–1965) was a fishery biologist. [...] (Ref. 128868), visit book page.
More on author: Schultz.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathypelagic; depth range 100 - 2014 m (Ref. 50550), usually 600 - 800 m (Ref. 86949). Deep-water
North Pacific: Japan and the Sea of Okhotsk to the Gulf of Alaska (Eschmeyer, pers. comm.). Reported from British Columbia, Canada (Ref. 11980).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 21.0 cm TL male/unsexed; (Ref. 56582); common length : 15.3 cm TL male/unsexed; (Ref. 56582); max. published weight: 400.00 g (Ref. 56582)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 0; Dorsal soft rays (total): 6 - 7; Anal spines: 0; Anal soft rays: 4; Vertebrae: 18. Illicium rather short; escal bulb bearing a somewhat flattened anterior appendage with 4 black flattened flaps, and bearing a rather long posterior appendage (Ref. 559). Further characterized by subopercle with posterodorsal margin indented to deeply notched; length of ventral fork of opercle 30.5-37.3% SL; ratio of lengths of the dorsal and ventral forks of opercle 0.42-0.54; absence of epibranchial teeth; presence of teeth on pharyngobranchial II; upper jaw teeth 19-42, lower jaw teeth 18-36; teeth on vomer 4-9; dorsal fin rays 5-6; anal fin rays 4; pectoral fin rays 14-17; head length 37.7-48.6% SL; head depth 39.1-54.1% SL; premaxilla length 28.4-34.1% SL; length of lower jaw 41.3-54.1% SL; length of illicium 23.9-39.0% SL (Ref. 86949).
Minimum depth from Ref. 58018.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Tools
Special reports
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 1.6 - 3.7, mean 2.1 °C (based on 75 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): 4.2 ±0.7 se; based on diet studies.
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (11 of 100).
