Fig. 3 in Systematic evaluation of cryptic freshwater snails from central Chile, including the enigmatic Littoridina santiagensis (Gastropoda, Truncatelloidea)

Fig. 3. Potamolithus santiagensis (Biese, 1944) comb. nov., Yeso Spring, Chile. A. Shell imaged using SEM. B–D. Shell of the same specimen photographed under a stereo microscope (frontal, dorsal, lateral views). E. Protoconch. F–G. Opercula of two specimens (outer, inner sides, respectively). H. Head of a female. I. Head of another female having a nuchal node. J. Anterior-central section of radular ribbon. K. Central teeth. Abbreviations: f = foot; h = head; l = lip; lt = left tentacle; nn = nuchal node; rt = right tentacle. Scale bars: A–D = 1.0 mm; E = 250 μm; F–G = 500 μm; H–I = 0.5 mm; J = 50 μm; K = 10 μm.