Figure 8 from: Hershler R, Liu H, Bradford C (2013) Systematics of a widely distributed western North American springsnail, Pyrgulopsis micrococcus (Caenogastropoda, Hydrobiidae), with descriptions of three new congeners. ZooKeys 330: 27-52. https://doi.org/10.3897/zookeys.330.5852

Figure 8 - Shells, opercula and radula, Pyrgulopsis micrococcus. A Lectotype, ANSP 67279a B–D Shells, USNM 1004185, USNM 905091, USNM 1004183 E, F Opercula (outer, inner sides), USNM 847246 G Portion of radular ribbon, USNM 847246 H Central teeth, USNM 847246 I Lateral and inner marginal teeth, USNM 847246. Scale bars A–D 1.0 mm; E, F 250 µm; G–I 10 µm.