FIGURE 3. A–C in Radiation and decline of endodontid land snails in Makatea, French Polynesia

FIGURE 3. A–C. Photographs of Mautodontha (Garrettoconcha) spelunca sp. nov. (MNHN 25583, paratype 3), showing the placement of measurements used in this study; D. Peristome of Mautodontha (Mautodontha) daedalea (MNHN 25587, specimen 9), showing the numbering scheme for apertural barriers used in this study. Abbreviations: ah, aperture height; aw, aperture width; d, shell diameter; h, shell height; nr, number of ribs on body whorl (counted from this line to the aperture); nw, number of whorls (line marks the boundary between whorls); sp, spire protrusion; t1, t2, barrier traces; u, umbilicus diameter. Scale bars: A–C = 2 mm; D = 0.5 mm.