FIGURE 2 in Redescription of Bythotrephes arcticus Lilljeborg, 1901 (Crustacea: Cladocera: Onychopoda) and confirmation of an independent species status of the distant Transcaucasian populations of the genus Bythotrephes Leydig

FIGURE 2. Bythotrephes arcticus Lilljeborg, adult parthenogenetic females, lake 1 (basin of the River Tchernaya, Bol'shezemelskaya tundra, Arkhangel'skaya region, North-Eastern European Russia). A, thoracic limb of second pair (tl II) (small letters indicate the respective type of setae). B, anterior lateral seta of first segment of endopodite of tl II. C, anterior distal seta of second segment of endopodite of tl II. D, anterior terminal seta of endopodite of tl II. E, anterior subterminal seta of endopodite of tl II. F, posterior terminal seta of endopodite of tl II. G, posterior subterminal seta of endopodite of tl II. H, thoracic limb of third pair (tl III). I, thoracic limb of fourth pair (tl IV) (inner view). J, distal seta of protopodite of tl IV. K, inner lateral seta of distal segment of tl IV. L, outer seta of distal segment of tl IV. M, outer distal parts of protopodites of tl I–tl III.