Oligochaeta.^ SUBANTARCTIC ISLANDS OF NEW ZEALAND. 253 



Notiodrilus fallax, sp. nov. 

 Snares Island. 



Notiodrilus aucklandicus, Benham. 

 Auckland Group. 



Notiodrilus campbellianus, Benham. 

 Auckland and Campbell Islands. 



* Notiodrilus macquariensis, Beddard. 

 Macquarie Island. 



Plagiochneta plunketi, sp. nov. 

 Auckland Islands. 



Rhododrilus cockayni, Benham. 



Auckland and Campbell Islands. 



Leptodrilus leptomerus, Benham. 



Auckland and Campbell Islands. 



Leptodrilus magneticus, sp. nov. 

 Auckland Islands. 



Subfam. Megascolecinae. 



Plutellus aucklandicus, sp. nov. 

 Auckland Islands. 



IXporochrieta heterochaeta, sp. nov. 

 Snares Island. 



Diporochaeta brachi/soma, sp. nov. 

 Auckland Islands. 



Diporochaeta helophila, sp. nov. 

 Auckland Islands. 



fXporochfieta perionychopsis, sp. nov. 

 Auckland Islands. 



Fam. LUMBRICIDAE. 



Helodrilus constrictus, Moore. 



Introduced. Campbell Island. 



GEOGRAPHICAL RELATIONS. 



The only endemic genus is Leptodrilus, which is closely related to a purely New 

 Zealand genus, Rhododrilus, in which, indeed, I formerly included it. This new 

 genus, represented by two species, occurs both on the Auckland and on the Campbell 

 Islands, as does also Rhododrilus. 



•Those marked with an asterisk were not obtained during the expedition. 



