Actinopteri (ray-finned fishes) > Lophiiformes
(Anglerfishes) > Thaumatichthyidae
(Wolftrap anglers (Ref. 7463), Wolftrap Seadevils (Ref. 86949))
Etymology: Lasiognathus: Greek, 'lasios' = hairy or wooly + Greek, 'gnathos' = jaw (with reference to the huge number of long teeth of the upper jaw) ( Ref. 86949).. More on author: Regan.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 0 - 4000 m (Ref. 27827). Deep-water
Eastern Central Pacific. Atlantic Ocean: in tropical waters.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.7 cm SL (female)
Morphology | Morphometrics
soft rays: 4 - 5. Escal bulb without membranous anterior crest. Distal escal appendage an elongate, cylindrical stalk, with a slender, elongate prolongation emerging anteriorly from bases of escal hooks, bearing numerous lateral serrations or filaments. Posterior escal appendage laterally compressed and rounded (Ref 27827). Length of illicium 39-46%; posterior escal appendage a compressed flange, length 1.4-4.4% SL, with irregularly rounded edge and broad base, emerging from below escal pore; escal hooks black, relative length of medial (largest) hook decreasing with age from about 10.3% SL in 30mm specimen to 3.6% SL in 77mm specimens (Ref. 86949).
Feeds mainly on fish and occasionally on invertebrates (Ref. 27828).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Bertelsen, E. and T.W. Pietsch, 1996. Revision of the ceratioid anglerfish genus Lasiognathus (Lophiiformes: Thaumatichthyidae), with the description of a new species. Copeia 1996(2):401-409. (Ref. 27827)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 3.1 - 7.6, mean 4.7 °C (based on 124 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5352 [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
): 4.0 ±0.60 se; based on food items.
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .