CONTENTS 



Introduction page 235 



Geographical Distribution 235 



Degeneration of the Internal Organs in the Enchytraeidae . . . 237 



Variation in Form of the Nefhridia in the Enchytraeidae .... 240 



Systematic 241 



Family Phreodrilidae. 



Genus Hesperodrilus, Bedd. em. Mich 241 



Hesperodrihis, sp 241 



Family Ench3rtraeidae. 



Genus Mariotiina, Mich 241 



Marionina georgiana (Mich.) 241 



Mariotiina grisea, sp.n 243 



Marionina aestiium, sp.n 246 



Genus Ltimbricillus, Orst 251 



Lnmbricillus lineatus (Miill.) 251 



Lumbricillus maximus (Mich.) 252 



Lumbricillus macquariensis , Benh 254 



Lumbricillus antarcticus, sp.n 256 



Genus Enchytraeus, Henle 257 



Enchytraeus albidiis, Henle 257 



Enchytraeus ausiralis, sp.n 258 



Enchytraeus colpites, sp.n 260 



Genus Michaelsena, Ude 263 



Michaelsena monochaeia (Mich.) 263 



Genus Achaeta, Vejd 263 



Achaeta, sp 263 



Bibliogr.\phy 264 



