Revision of the circumglobal deep-sea genus Leucicorus (Teleostei, Ophidiidae) with two new species Schwarzhans, Werner W. Nielsen, Jørgen G. Mundy, Bruce C. Zootaxa 2022 2022-02-22 5100 4 541 558 5DRP 1843793 : Nielsen 1974 [366,501,151,177] Actinopterygii Ophidiidae Leucicorus Animalia Ophidiiformes 2 543 Chordata genus    1a Extensive squamation on opercle, preopercle and occiput; transversal scale rows ≥25; inner face of otolith more strongly convex than outer face.................................................................................... 2  1b Reduced squamation on opercle, preopercle and occiput; transversal scale rows ≤21 (not considering ROV live photographs); inner face of otolith nearly flat, outer face distinctly convex................................................... 3   2a Dorsal fin rays 110–114; anal fin rays 96–99; vertebrae 68–69; transversal scale rows 35–40..................  lusciosus  2b Dorsal fin rays 97; anal fin rays 73–80; vertebrae 62; transversal scale rows 25......................   gerringerae n. sp.   3a Dorsal fin rays 88–94; anal fin rays 68–80; no eye lens or lens smaller than 10% of black eye; OL:OH = 1.2–1.55....................................................................................................  atlanticus  3b Dorsal fin rays 105; anal fin rays 87; lens at least 50 % of black eye; OL:OH = 1.73.....................   lentibus n. sp.