Additional file 1.

Head anatomy of the holocephalan Callorhinchus milii. Braincase (grey), cast of endocranial cavity and otic capsules (blue), brain and cranial nerves (green) of the late embryo of the extant holocephalan Callorhinchus milii, rotating from dorsal to ventral view. Three-dimensional virtual reconstruction made from synchrotron microtomography images. The oral opening of the buccohypophyseal canal is visible on the ventral aspect of the chondrocranium. See Figure 7 in the main text for further details.

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Khonsari et al. BMC Biology 2013 11:27   doi:10.1186/1741-7007-11-27