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Left bony labyrinth of Daubentonia madagascariensis (A) and Palaeolemur betillei (B). Labyrinths are oriented in superior (left) and lateral (right) views (by convention, the lateral semicircular canal is positioned horizontally). Arrows: in both species, the ampullar part of the posterior canal is fused with the medial part of the lateral canal. Specimens: AIM-ZU AS-1843 (Daubentonia) and Bor-613 (Palaeolemur). Scale bar: 1 mm.
