a single Amphinomid is mentioned as obtained at a great depth. However, the Siboga-expedition 

 was fortunate enough to collect also in shallow water several new species, especially belonging 

 to the genus Euphrosyne\ it is not impossible that this rich harvest partly may be ascribed 

 to the use of better appliances in the plankton-investigations. 



The state of preservation of most of the worms was very good; in those from great 

 depth the tissues appear to be softer and looser than in those from shallow water. As a mere 

 description of Annelida without figures is almost of no value for a sure identification of the species, 

 I am much indebted to the able pencil of Miss C. Ritsema and Mr. Cu. F. H. Dumont, who 

 endeavoured to render the structural details of several species as correct as possible. 



