INTRODUCTION. 



The considerable number of additional species observed during the 

 latter years has induced me to publish a supplementary Volume to the Copepoda, 

 containing descriptions and figures of these species, and embracing all the 3 

 leading divisions treated of in the 3 preceding Volumes. The far greater 

 number of these species has been derived from the extensive division Har- 

 pacticoida; but also of Calanoida and Cyclopoida several interesting forms are 

 added in the present Volume. Most of the species here described have been 

 picket up from bottom-samples taken at different times, and chiefly in 2 local- 

 ities on our southern coast, viz., Korshavn and Ris0r, some also from mixed 

 collections of Copepoda made in the same localities. It is evident that the 

 study of the present order of Crustacea still remains to be a very promising 

 one, and I do not doubt that continued investigations in other places of our 

 extensive coast will reveal many additional forms worthy of note. 



1 Crustacea. 



