FIGURE 2. Hybrid form Bythotrephes brevimanus x B in Morphological assessment of the North Eurasian interspecific hybrid forms of the genus Bythotrephes Leydig, 1860 (Crustacea: Cladocera: Cercopagididae)

FIGURE 2. Hybrid form Bythotrephes brevimanus x B. cederströmii (the River Volga reservoirs, Central European Russia: A– G—Rybinskoe Reservoir, H–L—Ivan'kovskoe Reservoir, M–R—Uglicheskoe Reservoir; S–U—Mullsjön, Sweden). Female: A–C, M, N, S, bend of caudal process (traces of bend are arrowed); I, J, setae of distal end of second endopodital segment of tl I; K, L, O–R, T, U, postabdominal and caudal claws. Male: D, proximal part of third segment of tl I; E, clasping hook and nearest area, inner view; F, clasping hook, lateral view; G, copulatory appendage.