FIGURES 7A–F. Pisidium vile. A, B in Anatomical characteristics of two enigmatic and two poorly known Pisidium species (Bivalvia: Sphaeriidae) from Southern South America

FIGURES 7A–F. Pisidium vile. A, B. Syntypes (ANSP 70489). A. Right valve, lateral view. B. Posterior view. C–F. Specimens from Arroyo Miguelín (MLP 5665). C. Posterolateral view, detail of escutcheon. D. Right valve, lateral view. E. Left valve, inner view. F. Right valve, inner view. Scale bars: A, B, D–F = 500 µm; C = 200 µm.