COPEPODA. 5 



1. Of the Antarctic Copepoda the following are new species and genera : — 



Paralahidocera hodgsoni Euchirella magna 



Ilaloptilus ocellatus Faroella aiitarctica 



Stephos antarcticus Gaetanus antarcticus 



Euchoeta similis Xanthocalanus antarcticus 



Calanus siinilllmus (mentioned briefly by Giesbrecht, loc. clt.). 



2. The following are species newly described ])y Dr. Giesbrecht (' Belgica ' report), 

 occurring also in the ' Discovery ' collection : — 



Euchoeta antarctica 



Stephus longipes 



Metridia gerlachci (nearly related to M. hoechi and M. lucens). 



Oncea curvata „ ,, 0. suhtilis, Giesb. 



Rhincalanus grandis ,, ,, B. gigas, Brady. 



liar pact icus furcifer „ „ Il.flexus, Brady. 



3. Of species which occur in the North Polar regions there are only the following 

 ' Discovery ' species, which bear such slight modification as to be practically identical : 

 Microcalanus jnisillus (= Pseudocalanus pygmseus) ; Oithona similis. 



4. The ' Discovery ' collection would therefore lead us to suppose that, so far as 

 copepod fauna is concerned, there is little resemblance between the characteristic fauna 

 of both Polar regions. In the ' Belgica ' collection, Oncea conifera and notopus ; and in 

 the ' Gauss ' collection, Oncea conifera, Gaidius tenuispinus and hrevispinus, and 

 Amallophora magna, that is, seven species of a total of 55-60 species occurring in the 

 South Polar seas, are all that are identical with the species described by Prof. Sars as 

 collected by Nansen's Norwegian North Polar Expedition. It would not, however, be 

 safe to take this list of Prof. Sars' as the ultimate result of copepod research of the 

 North Polar seas, and other species may yet be found to be identicah 



The following table shows the comparative relationship of species of the more 

 frequently occurring genera : — 



K -1 



