Note 128 — Chapter III · THE OPOSSUMS.
Reading edition
The sub-genera Halmaturus and Heteropus, Osphranter, Lagorchestes, and Petrogale, are included in Macropus, and many other sub-genera relating to the other families merely complicate the classification. Bettongia, Potoroiis, are sub-genera or artificial groups of the genus Hypsiprymnus; Cuscus, Trichosurus, Pseudochirus, and Dromicia, are groups of Phalangistidæ; Petaurista, Belideus, and Acrobata are divisions of the genus Petaurus; Macrotis is a sub-genus of Perameles; Antechinus is a division of the genus Phascogale; Sarcophilus is a sub-genus of Dasyurus. These are unnecessary sub-divisions.