Illustrations of the 3D surface model of the species Iberolacerta monticola and the morphological traits measured. The inner ear length, width and depth measurements are indicated. The semi‐circular canals (SCs) are illustrated with different colours: ASC in green, PSC in yellow, LSC in red. The utricle is shown in blue and the common duct in purple. ASC, anterior semi‐circular canal; LSC, lateral semi‐circular canal; PSC, posterior semi‐circular canal.