Figure 4 in A widespread Ponto-Caspian invader with a mistaken identity: integrative taxonomy elucidates the confusing taxonomy of Trichogammarus trichiatus (= Echinogammarus) (Crustacea: Amphipoda)

Figure 4. Distribution of focal taxa. Small dots represent distribution records from the literature (after CopilaȘ-Ciocianu et al., 2023); large dots represent sequenced localities (black outline, literature data; white outline, present study). Arrows represent the type localities of Chaetogammarus trichiatus (orange) and Spirogammarus major (purple). The question mark represents a doubtful distribution record of Chaetogammarus ischnus. Green dashed lines indicate the native range.