[68] "The Cerebral Commissures in the Marsupialia and Monotremata," Journ. Anat. Phys. xxvii. 1893, p. 69.
[69] When there are more than two, two are especially developed. See Figs. 76, 77 (pp. 149, 150).
[70] See for a further discussion of this subject the zoogeographical handbooks of Mr. Lydekker and myself, quoted on p. [78] (footnote).
[71] To this may be added Mr. Thomas' observation that the family of American Opossums is "very closely allied to the Dasyuridae, from which, were it not for its isolated geographical position, it would be very doubtfully separable."
[72] Except in the South American Diprotodonts.
[73] Proc. Zool. Soc. 1893, p. 450.
[74] Ibid. 1876, p. 165.
[75] Journal of the Rt. Hon. Sir Joseph Banks, Bart., K.B., P.R.S., edited by Sir Joseph Hooker, London, 1896.
[76] Proc. Zool. Soc. 1896, p. 683.
[77] Proc. Zool. Soc. 1875, p. 48.