Figure 3
From: Terrestrial invasion of pomatiopsid gastropods in the heavy-snow region of the Japanese Archipelago
Maps of Japan showing distributions of Pomatiopsine taxa. (a) Clade 1; (b) amphibious species of clade 2, Fukuia kurodai and F. multistriata; (c) terrestrial species of clade 2, B. integra; (d) other pomatiopsine species. Solid and open symbols represent the collecting sites in this study and distribution record from the literature, respectively [22, 35, 72–76]. Solid and dashed curves indicate areas that have more than 100 mm and 150 mm, respectively, of total precipitation in January (average of 1971-2000 [77]).