COPEPODA. 5 



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



Paralabidocera hodgsoni Euchirelli nui/jna 



HdloptiluS wi'llut/ix J'"unitl/<i iiiifiirrficn 



Sfephos antarcticus Gaetanus antarcticus 



Euchceta similis Xaiitlic<il<tiuix >n/f<irrfi,-n* 



Calanus simillimus (mentioned briefly by C4iesbrecht, loc. cit.}. 



2. The following are species newly described by Dr. Giesbreclit (' Bclgica' report), 

 occurring also in the 'Discovery' collection : 



Euchceta antarctica 



Stephus longipes 



Metndia gerliclu'i (nearly related to M. b,->cckl and 3f. ///>,v//.v). 



Oncea curvata ,, 0. subtilis, Giesb. 



Rltiiiculnnus grandis ,, /?. gigu*, Brady. 



Harpacticus furcifer IT. flexu*, 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 pusillus ( = Pscudocalanus pygmseus) ; Oith<>n<i *iiii ///'*. 



4. The ' Discovery ' collectiou 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 cmiifi'm and i/i'f<>j(* ; and in 

 the 'Gauss' collection, Oncea cunlfera, Gaidius tenuispinus and brevispinus, and 

 Amaltpphora iinii/nn, 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 identical. 



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

 frequently occurring genera : 



N. Polar. S. Polar. 



Citltnttis fitimarr/iicus replaced by <'. /roiiin<ji<nx 



hyperloreus IOHXHS 



si mittimus 

 acutus 

 Metriilia lonya n- placed by .'/. 



Amallophora mugna (= Scaplio- .1. magnet, 



falti nus acrocephdlus, Sars) 



Scolerithrix Irevicornis replaced by S. glacialis 



Xanthocalanus lorealis replaced by A'. 



k _' 



