45 



HiittcMU MW III. 



V2 1S99. Ofoten II. 



liottoin -iSs 111. 



iottoiii (;.)() Ill 



PJcKromnmma rolmsta, Dahl. 



!>;. II, Fi.r. 1- ll^ 



In samples fi'om The Vest Fioi-d (Skroven I, "'2 1899. 0—300 m.) 

 1 found one sinirle female specimen of a Pleuromamraa, which I at 

 first mistook for a P. (thcloinhiali.^. 



But on closei- examination, I found that the first pair of an- 

 tennae were without the peculiar hooks which specially distinguish 

 the latter species. Then I continued my examination on the lines 

 laid down by Dr. Giesbhecht in his tables'), and came to the 

 conclusion that my specimen was identical with the form described 

 by F. Dahl found in the Atlantic, r/>. P. robiisfa. As there were 

 no drawings nor detailed description of the latter, I decided that 

 I Avould treat my .specimen very thoroughly and examine it still 

 more closely, and then I prepared detailed drawings. 



1) Copepn.la (in ,I)as Tierreidr). \,. lUit. 



Meanwiiile, G. 0. Sars's excellent drawings and desci'iption') 

 Mere puhlisheil. .so that my work became superfluou.s. I have, nevei-- 

 tlicless. hail my sketclies reproduced, as the place where my speci- 

 men was found is cMiisidrnibly liirllirr north than there the ones 

 lireviiuisly iiicntioiied have been louml. My sketches may then be 

 used as proofs that it was really a P. ruhushi I secured at Skroven 

 in The Vest Fiord. Its length was ;3.7 mm. According to G. O. 

 Saks this species was taken by Dr. H.jout on the „ Michael Sars" 

 expedition, somewhat north of The F;eroe Islands (stat. 9) and in 

 The Stor Fiord in Sondmore (stat. 4). 



Hdcrorhnhihts norregicits, Boeck. 



I have sjH'cinieiis of thi.s .species from The Ostnes Fiord, The 

 Vest i'^ioid I Skroven. Tranodybet), Oxsund, The Ofot Fiord, The 

 Tys Fiord, The Folden Fiord and The Skjerstad Fiord. It was 

 only found in small quantities at all these places. There were a 

 few fully developed males in addition to the more plentiful females. 

 With respect to propagating time, it may be mentioned that juniorcs 

 were noticed '/■, 1899 1 Ofoten I, .300— .•5.50 m.). '",, 1899 (Oxsund, 

 350—450, 450 — 550 m.) and again "4 1900 (The Folden Fiord, 

 200-300, 300—400, 400—500 m.). 



Sars has found this species at various jilaees from The Kri- 

 stiania Fiord right up to Lofoten. 



Candncia armata, Boeck-). 



In The Vest Fiord (V2 1899, Skroven I. o-.-jso m.) 1 took a 

 single female specimen of this species, length -Ifi mm. This station 

 at Skroven is the most northerly place where this species has, up 

 to the present, been noticed. 



Acartia clansi, Giesbhecht. 



Under Acartia sp. in the tables, both daidi and lungiremis 

 are included. The form which was seen about the middle of January 

 1899 (12th— 18th of .Tanuary! was principally chms'i. 



Acartia lonyin 



LiLLJEBOEG. 



This .species was found occasionally among the samples, but 

 never in any (quantity worth mentioning. 



Oithona similis, Claus. 



Even if there should be no other jilauktou copepod to be found 

 this species, however, is usually present, at any rate one may almost 

 certainly find a few specimens, and, on account of its very general 

 appearance, this species must be reckoned among the most unportant 

 copepoda with regard to its ecological worth. 



I have noticed females cariying their eggs in every month of 

 the year in the fiords in the neighbouihood of Bergen. 



Oithona plioiiifcra, P)A1kd. 



As the tables show, this species was found at many places, 

 but never in any quantity. It was also found off Ingø (-■•/4 1899. 

 Ingehavet, 0—300 m.), and this is its northernmost limit as far as 

 is now known. The geographical position of this station is: 71° 

 10' N., 23" 10' E. 



') Crustacea of Norway. Vol. I 

 -) G. O. Sars. Crustacea of N. 



PI. 78, 79. 

 . IV. pag. 135 



