Fig. 2. Map showing the collection localities of salmonids infect- ed with Argulus coregoni (closed circles 1–7) in rivers of Gifu Prefecture, central Japan. The collection localities of ayu, Plecoglossus altivelis altivelis, infected with A. coregoni, are also shown (open triangles 8–11). 1, Upper reaches of the Maze River; 2, tributary of the Hida River; 3, tributary of the Tsukechi River; 4, tributary of the Yoshida River; 5, the Itoshiro River; 6, tributary of the Sho River; 7, the Gamada River; 8, middle reaches of the Maze River; 9, middle reaches of the Shira River; 10. middle reaches of the Nagara River; 11, lower reaches of the Nagara River.

Published as part of Nagasawa, Kazuya, Kishi, Daisuke & Tokuhara, Tetsuya, 2022, Occurrence of a Skin Parasite Argulus coregoni (Branchiura: Argulidae) on Salmonids in Mountain Streams, Central Japan, with Discussion on Its Longitudinal Distribution and Host Utilization in Rivers, pp. 159-166 in Species Diversity 27 (1) on page 161, DOI: 10.12782/specdiv.27.159, http://zenodo.org/record/7175334