Fig. 1
From: Semicircular canal shape diversity among modern lepidosaurs: life habit, size, allometry
Landmarks on the endocast of the bony labyrinth of Varanus niloticus (PIMUZ A/III 0225). A Lateral view. B Medial view. C and D Same views as in A and B but with landmarks added. Each canal is described by 20 landmarks along a central streamline. AA anterior ampulla, ASC anterior semicircular canal, CC common crus, L lagena (including the cochlear duct), LA lateral ampulla, LSC lateral semicircular canal, PA posterior ampulla, PSC posterior semicircular canal, S sacculus, VF vestibular fontanelle