Figure 1 in On morphological and ecological evidence of adaptive differentiation among stony cliff littoral Baikal gastropods

Figure 1. Shell images of smooth (A–C), ribless (D) and ribbed (E–G) morphotypes of Maackia herderiana with the measurements used in the morphological study. (C, G), top view and measuring the number of whorls. H = shell height; W = shell width; aw = aperture width; al = aperture length; ah = aperture height; hz = spire height; ho = height of last whorl; ht = height of two subsequent whorls; h1 = height of the first whorl over the aperture; w1 = width of the first whorl over the aperture; l1 = length of the first whorl over the aperture; a1 = convex of the first whorl over the aperture; characteristics h2–h3, w2–w3, l2–l3, a2–a3 were measured as the first whorl over the aperture. Scale bars: 1 mm.