Illustrations of the 3D surface model of the species Iberolacerta monticola and the radius of curvature measurements. For each semi‐circular canal (SC), respectively, the width (ASC w, PSC w, LSC w) and height (ASC h, PSC h, LSC h) measurements of the radius of curvature are illustrated. ASC radius of curvature (ASC R) is indicated in green, PSC radius of curvature (PSC R) is indicated in yellow, and LSC radius of curvature (LSC R) is indicated in red. ASC, anterior semi‐circular canal; LSC, lateral semi‐circular canal; PSC, posterior semi‐circular canal.