Threadfin seasnail
📖 Overview
Threadfin seasnail (Rhodichthys regina) is a ray-finned fish. It inhabits marine (saltwater) waters in deep-water environments. This species can reach a maximum total length of 31 cm. It occurs at depths between 1080 and 2365 metres. With a trophic level of 3.6, it is a mid-level predator.
🔬 Taxonomy
🐟 Physical Description
Dorsal soft rays (total): 56 - 60; Vertebrae: 62 - 69. This species is distinguished by the following characters: vertebrae 62-69; D 56-60; pectoral fin with 12-13 rays in upper lobe, 4-5 notch rays (rudimentary to their basis and widely spaced) and 2-3 elongated rays in lower lobe; preanal distance 34.3-34.5% SL, head 23.4-23.9%; postorbital distance short, 12.7-13.0% SL; wide and flat tooth plates, teeth very small, slightly prominent and even in size; posterior margin of gill cover rounded; skin on head, including its lower side, pale (bright red in life); mouth pale, grayish gill cavity .: elongated; Cross section: oval.
🌀 Behaviour
Behavioural data for Threadfin seasnail is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Marine; bathydemersal; depth range 1080 - 2365 m . Deep-water; 75°N - 58°N, 140°W - 17°E Northeast Atlantic: Central Arctic Basin, Norwegian and Greenland seas (Ref.
🌿 Ecology
crustaceans (Ref
📐 Morphometrics
🌡️ Water Parameters & Tolerance
📊 Population Risk & Fisheries
👥 Community & Contribute
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