Teleostei (teleosts) >
Ophidiiformes (Cusk eels) >
Bythitidae (Livebearing brotulas)
Etymology: Barathronus: Greek, barathron = abyss + ending -ites, that lives there; the Barathron was a deep pit in Athens where criminals were thrown; 1849 +Greek, onos = hake.
Eponymy: Captain Jacques Théophile Parfait (1839–1915) was master of the ‘Talisman’, the French research vessel from which the holotype was collected. (Ref. 128868), visit book page.
More on author: Vaillant.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathypelagic; depth range 1845 - 5005 m (Ref. 34024). Deep-water; 45°N - 39°N, 31°W - 13°W
Northeast Atlantic: between France and the Azores, 44°29'N,13°32'W.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 10.0 cm SL male/unsexed; (Ref. )
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 80 - 85; Anal soft rays: 60 - 65. The species described from a juvenile have few morphometric characters with some meristic characters that are approximations. It is distinguished by the following set of characters that seems to be diagnostic: D 80-85, A 60-65, pectoral-fin rays 21; precaudal vertebrae 37, total vertebrae 84; long rakers on anterior gill arch 29. Remains of a broken fang laterally on vomer and peritoneum transparent (Ref. 121928).
Rare species (Ref. 34024). Viviparous (Ref. 7408).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Nielsen, J.G., 2019. Revision of the circumglobal genus Barathronus (Ophidiiformes, Bythitidae) with a new species from the eastern North Atlantic Ocean. Zootaxa 4679(2):231-256. (Ref. 121928)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
Special reports
Download XML
Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00246 - 0.02688), b=2.92 (2.67 - 3.17), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.4 ±0.5 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).