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. 2013 Apr 24;8(4):e61998. doi: 10.1371/journal.pone.0061998

Figure 2. X-ray projections through the posterior portion of bat skulls containing the bony labyrinth, in the ventral-dorsal plane.

Figure 2

The corresponding reconstructed inner ear volumes are shown on the right of the panels; these inner ears are orientated so that the lateral semicircular canals are maximally aligned in the horizontal plane, allowing differences in cochlear orientation to be compared across species. Echolocation mode, species and family information are as follows: (A) the non-echolocating Old World fruit bat Hypsignathus monstrosus (1.3518) (Pteropodidae); (B) the Old World CF bat Rhinolophus ferrumequinum (58.20697) (Rhinolophidae); (C) the New World CF bat Pteronotus parnellii (5.21236) (Mormoopidae) and (D) Mormoops megaphylla (2.1603) (Mormoopidae) which utilizes narrowband multi-harmonic signals.