PREFACE. 



By this Volume I definitely conclude my Account of the Norwegian 

 Copepoda, it being my purpose in the next Volume to enter upon an entirely 

 different group of Crustacea, viz., the Ostracoda. Although my Account of 

 the former group has required no less than 5 Volumes, and more than 500 

 species have been described, I do not by any means imagine, that it gives a 

 fully exhaustive record of the existing forms, and I am indeed convinced that 

 many interesting species still remain to be detected, especially of the smaller 

 deep-water Harpacticoida and of the semiparasitic forms. Yet, I hope that my 

 Account may have thrown some light on this formerly much neglected part 

 of our Fauna, and that it may serve as the basis for further investigations. 



As to the two anomalous groups treated of in the present Volume, no 

 record whatever has as yet been given on the Norwegian forms belonging to them. 



I will not omit, also on this occasion, to tender my most sincere thanks 

 to the Direction of the Bergen Museum for the interest, it still shows for the 

 progress of my work. 



G. O. Sars 



