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.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range 386 - 1525 m (Ref. 34024). Deep-water
Indo-West Pacific: off South Africa, Madagascar and Mozambique to Japan, the Philippines and Australia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 18.0 cm TL male/unsexed; (Ref. 6611)
Dorsal soft rays (total): 75 - 83; Anal soft rays: 55 - 66; Vertebrae: 74 - 79. This species is distinguished by the following characters: when preserved, distinct, dark brown pigmentation dorsally between head and dorsal fin and on the sides of the light brown body; fresh specimens when newly caught with dark blue-like pigmentation on the peritoneum and body faintly reddish; D 75-83, A 55-66; vertebrae 74-79; vomer with up to four fangs, dentary with up to five fangs; penis length up to 10% SL, proximally covered by a large dorsal clasper and a smaller ventral clasper protected ventrally by a well-developed fleshy hood; eyes not externally visible in specimens longer than about 14.0 cm SL, while eyes of smaller specimens appear as a narrow, dark ring surrounding lighter tissue (Ref. 128809).
Cross section: compressed.
Rare species (Ref. 34024). Viviparous. Relatively often caught by commercial trawlers for it also occurs on the upper continental slope (Ref. 128809).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Nielsen, J.G., J.J. Pogonoski and S.A. Appleyard, 2019. Aphyonid-clade species of Australia (Teleostei, Bythitidae) with four species new to Australian waters and a new species of Barathronus. Zootaxa 4564(2):554-572. (Ref. 128809)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
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