Hymenocephalus Papyraceus
📖 Overview
Hymenocephalus Papyraceus (Hymenocephalus papyraceus) is a ray-finned fish of the family Macrouridae. It inhabits marine (saltwater) waters. This species can reach a maximum total length of 10 cm. It occurs at depths between 220 and 600 metres. With a trophic level of 3.2, 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 10-11; pectoral fin rays 16-18; projecting snout with thin, pointed tip, 20-25% HL; short barbel, 4-5% HL, and not reaching vertical through anterior margin of orbit; orbit diameter moderate, 25-30% HL; interorbital width 70-.80% HW; infraorbital width 16-20% HL; very long preopercular supporter, straight, 10-11% HL; gill rakers 18-22; ventral striae reaching to about 1/3 distance from pelvic fin bases to periproct; otolith with moderately high predorsal lobe and with colliculi separated, closely placed across narrow collum, terminating far from anterior and posterior rims of otolith; otholith length to height (OL:OH), 1.05; total colliculum length to pseudocolliculum length (TCL:PCL), 2.1 .Cross section: angular.
🌀 Behaviour
Behavioural data for Hymenocephalus Papyraceus is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Marine; benthopelagic; depth range 220 - 600 m . Temperate Northwest Pacific: Sagami Bay, Japan.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
📊 Population Risk & Fisheries
🔍 Similar Species
👥 Community & Contribute
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