Line drawings of the 3D reconstructions from CT data of the cochleae (a, d) Diacodexis ilicis (AMNH VP 16141), (b, e) Moschiola meminna (UM2 58V) and (c, f) Sus scrofa (UM2, not numbered) shown in apical (a–c) and medial (d–f) views. Scale bar: 5 mm. ac, aqueduct cochleae; co, cochlear canal; fc, fenestra cochleae; ssl, secondary osseous spiral lamina; pl, primary osseous spiral lamina; ps, outpocketing for perilymphatic sac.