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Emil Sioli †
(1923)
The classifications of the Hystricomorpha in English text-books of Zoology are based upon the one proposed by Alston in 1876 (P.Z.S. 1876, pp. 90-97), which was itself an amplification and in some particulars a modification of the arrangement suggested by Waterhouse in 1848. Alston added to the group the family Dinomyidae, which, following Peters, he placed between the Dasyproctidae and Caviidae; and the Otenodactylinae, which he ranked as a subfamily of Octodontidae. He also transferred Petromys from the Echymyina (Echinomyinae), where it was placed by Waterhouse, to the Octodontinae. ...
In the plant kingdom, particularly in the phanerogamic flora, hermaphroditism is by far the most common, yet the number of other sex forms is not negligible. This study was undertaken with the view of ascertaining the relative proportions in which such sex forms occur. For this purpose Engler and Prantls "Natürliche Pflanzenfamilien" with all the Nachträge (which are complete up to 1912) have been used. The lists that follow are the results of this examination.