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); thysanema: From the Greek thysanos, a fringe, and nema, thread, alluding to the numerous filaments fringing the anterior escal appendage of this species..
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 650 - 1500 m (Ref. 86949). Deep-water
Indo-West Pacific. Western Central Atlantic: Bermuda (Ref. 26783) and Banda Sea in Philippine Archipelago (Ref. 86949).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 2.7 cm SL (female)
Morphology | Morphometrics
soft rays: 4. Escal morphology: anterior appendage with a series of filaments along posterior margin; medial appendages in three groups; terminal papilla elongate; posterior appendage compressed and branched. Characterized further by having short and broad subopercle, upper end rounded without indentation on posterior margin; length of ventral fork of opercle; 27.7-30.2% SL; ratio of lengths of the dorsal and ventral forks of opercle 0.48-0.50; absence of epibranchial teeth; presence of teeth on pharyngobranchial II; upper jaw teeth 32, lower jaw teeth 30; teeth on vomer 4-6; dorsal fin rays 6; anal fin rays 4; pectoral fin rays 17; head length 45.3% SL; head depth 43.4% SL; premaxilla length 30.2% SL; length of lower jaw 47.2% SL; length of illicium 26.4% 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. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 2.6 - 7.6, mean 5.3 °C (based on 686 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
): 3.2 ±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) .
Climate Vulnerability (Ref. 125649
): (0 of 100) .