Figure 2

Living representative adult snails of Potamopyrgus antipodarum in central Chile. Shell length and shell width are given in millimeters. (A) Parque O'Higgins (3.8 × 2.1) (B) Estero La Dehesa (4.0 × 2.1). (C) Estero Consuelo (2.9 × 1.5). (D) Chalinga River (2.9 × 1.6).