Formosa dreamer (Oneirodes formosanus), first described by Ho & Shao, 2019 is a small fish in the family Oneirodidae (order Lophiiformes). Adults typically reach 9.30 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 400 to 600 metres. It occurs in Subtropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator.
Dorsal soft rays (total): 6; Anal soft rays: 4. This species with metamorphosed female differing from congeners have an elongated terminal papilla on esca; caudal peduncle deep (15.4% SL); a single simple, elongate, unbranched anterior escal appendage, with internal pigmentation; medial and lateral escal appendages absent; a simple, elongate, posterior escal appendage, tapering distally, no internal pigmentation; terminal escal papilla is elongated and cylindrical, internally pigmented, without distal pigment spots .Cross section: oval.
Behavioural data for Formosa dreamer is currently being reviewed.
Marine; bathypelagic; depth range 400 - 600 m . Subtropical Northwest Pacific: Taiwan.
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