We next come to the Continent of Australia. The earthworm fauna is again quite without Geoscolecidae and of course Lumbricidae. As to the former there are not even doubtful cases like _Glyphidrilus_ of the East; for we find only recorded _Pontoscolex corethrurus_, a species concerning whose extraordinary powers of migration there is no possible doubt. The same may be said of _Eudrilus_ also recorded from Australia. Here the Megascolecidae are as conspicuous as in the old world generally. We find, however, a great many members of the sub-family Acanthodrilinae. Of the antarctic genus _Notiodrilus_ there are some six species. _Microscolex_ occurs; but the real habitat of this genus is very doubtful. _Diplotrema_, with one species, _D. fragilis_, is not only indigenous to, but confined to, Australia. The most prevalent sub-family is that of the Megascolecinae. Of the genus _Pheretima_ there are two species which may or may not be truly indigenous. Of _Plutellus_ there are forty species; there are over thirty of _Diporochaeta_, while _Notoscolex_ (with which Dr Michaelsen associates _Digaster_, _Didymogaster_, _Perissogaster_) includes more than forty species, _Fletcherodrilus_ has but one species, _Megascolex_ has seventy species, _Woodwardia_ sixteen, _Spenceriella_ five, and _Megascolides_ seventeen. There are four species of _Perionyx_ which were at one time regarded by Michaelsen as necessitating a new but allied genus _Perionychella_; the two are now merged. Thus there are not far short of 150 species and eleven genera represented, of which only two are limited to Australia.