Oneirodes Dicromischus
📖 Overview
Oneirodes Dicromischus (Oneirodes dicromischus) is a ray-finned fish of the family Oneirodidae. It inhabits marine (saltwater) waters in deep-water environments. This species can reach a maximum total length of 3.5 cm. It occurs at depths between 840 and 1030 metres. With a trophic level of 3.4, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Data Deficient on the IUCN Red List.
🔬 Taxonomy
🐟 Physical Description
Dorsal soft rays (total): 6; Anal soft rays: 4. Characterized by having escal morphology: esca with stout, internally pigmented anterior appendage, distal end is bifurcated bearing numerous unpigmented tapering filaments; three pairs of filamentous medial escal appendages, most anterior pair longest, almost as long as escal bulb; terminal escal papilla rounded with distal streak of pigment; unpigmented tapering posterior escal appendage, slightly expanded and trifurcated at distal tip; absence of lateral escal appendages; stout, unpigmented anterolateral escal appendage bearing few small filaments; subopercle without indentation on posterodorsal margin; length of ventral fork of opercle; 21.4-23.8% SL; ratio of lengths of the dorsal and ventral forks of opercle 0.38-0.47; absence of epibranchial teeth; presence of teeth on pharyngobranchial II; upper jaw teeth 20-65, lower jaw teeth 27-70; teeth on vomer 4-8; dorsal fin rays 6; anal fin rays 4; pectoral fin rays 16-17; head length 35.7-38.1% SL; head depth 37.1-38.6% SL; premaxilla length 25.7-31.7% SL; length of lower jaw 38.1-38.6% SL; length of illicium 35.7-60% SL .
🌀 Behaviour
Behavioural data for Oneirodes Dicromischus is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Marine; bathypelagic; depth range 840 - 1030 m . Deep-water north of Marquesas Islands and Line Islands (Ref.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .
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