Oneirodes Sipharum (Oneirodes sipharum), first described by Prokofiev, 2014 is a tiny fish in the family Oneirodidae (order Lophiiformes). Adults typically reach 1.40 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 0 to 1000 metres. It occurs in Deep-water waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Data Deficient.
Dorsal soft rays (total): 4; Anal soft rays: 4. The esca of this species is characterized by the following: large, its height only 1.6 times as long as length of illicium; the length of illicium commensurate with length of its axonost; anterior process long, approximately 2.3 times longer than height of its bulb, multiply pinnately branching; central processes of esca (pair) close in bases, multiply filamentously branching from bases, the length of largest branches half as long as length of anterior process; no anterolateral and lateral processes; posterior process simple, filamentous, very long and thin, slightly (1.1 times) longer than the anterior process; no pigmented processes; terminal papilla high, conical, clearly defined, with oval intense black mark near front edge at its base .Cross section: oval.
Behavioural data for Oneirodes Sipharum is currently being reviewed.
Marine; bathypelagic; depth range 0 - 1000 m . Deep-water
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