Sciadonus Longiventralis (Sciadonus longiventralis) is a ray-finned fish of the family Bythitidae. It inhabits marine (saltwater) waters in deep-water environments. This species can reach a maximum total length of 7 cm. With a trophic level of 3.3, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Data Deficient on the IUCN Red List.
Dorsal soft rays (total): 87. This species is distinguished from its congeners by the following set of characters: absence of distinct black spots dorsally and along its midbody; D 87; precaudal vertebrae 39; pelvic fin length 3.5 % SL; predorsal length 28.5 % SL .Cross section: compressed.
Behavioural data for Sciadonus Longiventralis is currently being reviewed.
Marine; bathydemersal. Deep-water Southwest Pacific: Australia.
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