Hymenocephalus Antraeus
📖 Overview
Hymenocephalus Antraeus (Hymenocephalus antraeus) is a ray-finned fish of the family Macrouridae. It inhabits marine (saltwater) waters in deep-water environments. This species can reach a maximum total length of 16.5 cm. It occurs at depths between 450 and 799 metres. With a trophic level of 3.3, it is a low-level carnivore, feeding on invertebrates and small organisms.
🔬 Taxonomy
🐟 Physical Description
This species is distinguished by the following characters: pelvic fin rays 11-12 (usually 12); pectoral fin rays 13-15 (seldom 16); short projecting snout, 15-18% HL; short barbel, 3-4% HL, large orbit diameter, 35-40% HL; infraorbital width 8-10% HL; moderately long preopercular supporter, with obtuse angle at rear margin, 5-7% HL; 21-24 gill rakers; ventral striae reaching to ½ distance from pelvic fin bases to periproct; otolith has high predorsal lobe, with colliculi separated, closely placed across collum, with occasional tendency to partly join, terminating at some distance from anterior and posterior rims of otolith; otolith length to height (OL:OH), 0.95-1.1; total colliculum length to pseudocolliculum length (TCL:PCL), 1.6-1.7 .Cross section: compressed.
🌀 Behaviour
Behavioural data for Hymenocephalus Antraeus is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Marine; benthopelagic; depth range 450 - 799 m . Deep-water Central Pacific: Hawaiian Islands.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
📊 Population Risk & Fisheries
🔍 Similar Species
👥 Community & Contribute
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