Projection of the 2D orientation patterns of ciliary bundles onto the 3D models of the macula utriculi. (A-B) Macula utriculi of S. tinanti in dorsal (A) and medial (B) views. (C) Macula utriculi of the black molly in medial view. Especially the strongly curved lacinia illustrates the value of orientation patterns shown in 3D. a, anterior; d, dorsal; l, lateral.