Threadfin Seasnail

This species is distinguished by the following characters: vertebrae 62-69; D 56-60; pectoral finwith 12-13 rays in upper lobe, 4-5 notch rays (rudimentary to their basis and widely spaced) and2-3 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 (Ref. 86261).

Dorsal soft rays (total): 5660; Vertebrae: 62 - 69

Epibenthic; feeds on crustaceans (Ref. 58426).

Epibenthic; feeds on crustaceans (Ref. 58426).

The threadfin seasnail (Rhodichthys regina) is a species of snailfish native to the Arctic Ocean and the northeastern Atlantic Ocean, and may also be found in the North Pacific. It has been found at depths of from 1,080 to 2,365 metres (3,543 to 7,759 ft). This species grows to a length of 31 centimetres (12 in) SL.

Arctic Ocean: central Arctic Basin, Norwegian and Greenland seas, Baffin Bay. North Atlantic: Canada - Davis Strait; common in the Norwegian Sea; Faroe Trough and Baffin Bay, also north of the Wyville-Thomson Ridge and the Iceland-Faroe Rise

benthic

bathydemersal (1080-2365 m)