KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 32. N:0 8. 27 



C. excentricus Ehb. — In November more or less rare in the SE. region. At Hel der 

 rare in January, not rare in November, December. At Plymouth in January, February 

 and in November. In the Skagerak in November and December. 



C. ocuhis iridis Ehb. — In the North Sea in March, as a i'ule in the coinpany of 

 Halosphcara, W. of Norway and sparingly scattered through the choeto region. In November 

 rare W. of Jutland. At S:t Vaast la Hogue rare in November, at Helder in November, 

 December. In the Skagerak rare from January to March and in November. 



C. polychordus Gran. — Rare in March E. of Newcastle and W. of the Fisher Bank. 

 In the Skagerak rare from January to April and in November. 



C. stellaris Roper. — In the Skagerak rare from January to March. 



Dactyliosolen antarcticus Castr. — Rare in June W. of Cape Stadt. 



Ditylum Briglitwellii West. - — A. In the North Sea in March common W. of 

 Jutland at 55° 30' N. 6° 10' E., rare above the northern edge of the 50 metre plateau. — 

 B. In the E. C hann el at Plymouth rare in January, February, very common in September; 

 at S:t Vaast la Hogue rare in December. — C. At Helder more or less rare in 

 November, December. — D. In the Skagerak rare from January to March and from 

 October to the end of November. 



Eucampia zodlacus Ehb. — A. In the North Sea rare in March at 55°30'N. 6°10'E. 

 In June not rare N. of Holland and W. of Schleswig. In November sparingly from the 

 E. Channel to the W. of Jutland. — B. In the E. Channel at Plymouth common in April, 

 rare from the end of September to the beginning of December. At S:t Vaast la Hogue 

 rare in July, August, October and December. — C. At Helder more or less abundant 

 from the beginning of May to the middle of June and from the end of September (very 

 common) to the end of November (rare). — D. In the Skagerak rare in January and 

 in Octoljer, November. 



Guinardia flaccida Castr. — In the North Sea in March rare at Skagen and not 

 rare above the Fisher Bank, in June from the E. Channel to Skagen, most abundant W. of 

 Holland, in July not common W. of the Danish Peninsula, in November not rare from 

 the E. Channel to Skagen. — B. In the E. Channel, at Plymouth rare in March, not rare in 

 August, September and October, at S:t Vaast la Hogue rare in June, very common from 

 July to August. — C. At Helder common from the end of May to the end of Sep- 

 tember. — D. In the Skagerak from July to December (maximum in November). 



Laudeiia anmilata Cl. — A. In the North Sea rare in March on the Fisher Bank, 

 in June E. of Firth of Tay and more or less rare from the N. of Holland to Skagen, in 

 November rare near the E. Channel. — B. In the E. Channel at Plymouth rare in January, 

 more or less common in March, April and rare in September. — C. At Helder rare 

 from the end of October to December. — D. In the Skagerak rare in January, March 

 and November. 



