COPEPODA 



2 9 



the most part to be absent." On p. 6 "I thus venture to conclude that stage III |my IV] has been 

 predominant along the west coast of Iceland in April". Only 2 samples (7 and 9) bear out this 

 opinion; sample 1 but especially 10—12 (taken same date and locality with different nets), when 

 rightly interpreted, shows the species in propagation. The conclusion, as far as the North is concerned, 

 is based on several hauls with negative result and 2 samples taken with young-fish trawl and with 

 c. 95 °/ f?; to bear out this conclusion much more material is needed. 



His conclusion for May reads. "Whereas the Atlantic and the waters between the Faeroes 

 and Iceland are rich in C. f. the waters on the east and north coast of Iceland are poor, of the west 

 coast we know almost nothing." The Ingolf material from May and June 1895—96 (cf. tab. pp. 20—22) 

 confirms this view, and shows the species in full propagation especially in the latter half of May. The 

 same is the case in the middle of Denmark Strait. Paulsen's conclusion from north Iceland is placed 

 on far too scanty material. 



Paulsen's conclusion for June reads. "To the south and west of Iceland there are great 

 quantities, mainly juniores, — west of Iceland considerable quantities of adult both o* and °. . . . On 

 the western part of the north coast of Iceland, where the water is warmer, many juniores were also 

 found, on the eastern part, where the water is colder, few or none" (1906 p. 12). The Ingolf material 

 (cf. p. 22) from the south of Iceland confirms the conclusion that the juniores predominate; the great 

 number of St I— III probably indicates the new generation. My own samples from the Thor and in a 

 less degree from the Ingolf (cf. p. 20) tell the same story as far as the west coast is concerned. Paulsen 

 thinks that the adult males and females probably belong to the new generation, "as they occur along 

 with a number of juniores, most of which are in the larger stages". This proportion between the 

 stages, which f. inst. is not found in a sample (Ingolf St. 9 2 %), seems just as much to speak for 

 referring them to the old as the new generation. The hauls from the north coast are so few, that it 

 must be admitted that our knowledge about the occurrence of C. f. in the month of June is too 

 incomplete for any conclusion as far as this region is concerned. 



The author writes (1906, p. 13). "Summarising the conditions in July we find that Calanus 

 finmarchicus has increased more in the south than in the north, and that individuals on the easterly 

 north coast are larger than those of the westerly north coast on the one side, and than those on the 

 east coast on the other." The greatest number of specimens of the south coast belong to the stage 

 V — VI; Paulsen's suggestion that deep hauls with the young-fish trawl would show a considerable 

 amount of males is shown to be right by tab. pag. 22; whether these specimens belong to the elder or the 

 new generation is impossible to tell. The two samples (Nr. 3 — 4) from the north western coast do 

 not allow any conclusion, but the preponderance of St. IV (50—90 %) in 9 of 10 samples, scarcely 

 without any adult, is very remarkable, but does not give any information about the origin of the 

 specimens; 4 samples from the east coast show not much similarity to each other or to 2 samples, 

 from the Ingolf (St 101 — 102) with a considerable number of adult specimens. Paulsen concludes (p. 14). 

 "As there are practically no Calani on the greater part of the North coast at the end of May and 

 beginning of June, and as Nielsen has shown with certainty, that the water here is renewed from 

 the west, we are entitled to conclude that the large quantity of Calani on the north coast, as also 

 the young of the cod, have come with the Irminger current from the west." Before accepting this 



