Teleostei (teleosts) >
Ophidiiformes (Cusk eels) >
Bythitidae (Livebearing brotulas)
Etymology: Sciadonus: Derived from Greek, skiaina, skion = a fish, red mullet + Greek, onos = hake; robinsorum: Named for C. Richard Robins (formerly from UMML) and Rob Robins (UF).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range 4416 - 4422 m (Ref. 118598). Deep-water
Distribution
Territories | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Southwest Atlantic: off NE Brazil
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.7 cm SL male/unsexed; (Ref. 118598)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 81; Anal soft rays: 53; Vertebrae: 77. This species is distinguished by the following characters: horizontal mouth with no tissue flaps anteriorly on protruding lower jaw; no distinct black pigment spots through the transparent skin; D 81, A 53, pectoral 14 and no pelvic fins; precaudal vertebrae 37, total 77; predorsal length 42.5 % SL (Ref. 118598).
Cross section: compressed.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Nielsen, J.G., 2018. Revision of the cosmopolitan deep-sea genus Sciadonus (Teleostei, Bythitidae) with two new species. Cybium 42(2):177-187. (Ref. 118598)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
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