KONGL. SV. VET. AKADEMIENS HANDLINGAR. HAND 34. N:0 2. 21 



C. (iripos var.) longipes Bail. — January: llddcr rr; Skagerak re. Februari/: area 

 between Skaken, 58° N. 2° E., 56° N. 5° E., as a rule scarcc; W. of Schleswig c; Skage- 

 r;ik + r. Marek: Skagerak r. April, May: from (!1°N. 1° M to S. Norwaj c; area be 

 fcween 58° N. 5°E., 57° N. 2° E. and 56 c N. 3 E., od the whole rare; 55 N. 6 I-:, cc; 

 Skagerak + . June: S. and W. of Norway to 62° N. c; Skagerak c r. .//////, August: I 'lyra. +; 

 Irish Channel r; E. of Scotland r; 56° N. W. cc; 57 N. 1 K. r; 58° n! 6° E. +; Hel 

 der r; off Heligoland r; N. of Skagen r; Skagerak r. September: Helder + ; Skagerak + r. 

 October: Skagerak +. November: rare on some points W. and E. of Scotland and off the 

 Dutch coast; Skagerak + r. December: Plym. r; Måseskär c; Väderö + r. 



C. (tripos var.) macroceros Ehb. — January: Väderö r. February: area between 

 58° N. 0° W., Newcastle, West Jutland and S. Norway, as a rule abundant; Väderö and 

 Skagerak r. April, May: rare or dead on sorae spöts in the western North Sea (at 58° N. 

 5° E. comraon in May). June: Plym. r; 58° — 59° N. 7° — 5° E. cc; Skagerak cc. July- 

 August: Plym. r; W. of Skagerak and Jutland to about 3° E. cec; Skagerak ccc. Sep- 

 tember: Plym. +; 58°— 59° N. 7°— 5° E. ccc; Skagerak cc. October: Plym. r; Skagerak + c. 

 November: very comraon över the whole 1U0 metre plateau, especially in the central and 

 eastern parts; Skagerak cc r. December: Skagerak cc +. 



C. tripos Nitzsch. — January: Väderö and Måseskär cc. February: Plym. +; be- 

 tween Newcastle, S. Norway and Skagerak, sparingly in the west, abundant in the east 

 as well as W. of Jutland; Väderö c; Måseskär +- r. March: Väderö c r. April, May: area 

 between 58° N. 5°E., 57° N. 2° E., 56° N. 3°— 7° E., more or less comraon, but frequently 

 dead; from 60° N. 1° E. to S. Norway (May) as a rule very common; Måseskär c; Väderö +. 

 June: S. and W. of Norway to 62° N. ; Skagerak very common. July, August: Plym. r +; 

 between 54° and 61° N. from Scandinavia towards Scotland and England, where it becomes 

 rare; whole Skagerak ccc. September: Plym. cc; 58° — 59° N. 7° — 5° E. ccc; Skagerak ccc. 

 October: Väderö cc. November: Plym. r; above the whole 100 metre plateau very abun- 

 dant; Skagerak ccc- December: Plym. r +; Skagerak cc. 



Dinophysis acuta Ehb. — February: between Newcastle, Skagen and 58° N. 2 1... 

 as a rule r. March: Skagerak r. April, May: above the 100 metre plateau r. Jum ': 

 S. and W. of Norway r; Skagerak r. July, August: Plym. rr\ on some spöts in the 

 northern North Sea and in Skagerak r. September: 59° N. 5° E. +; 58° N. 7° E. r; Skage- 

 rak er (maximum). November: Irish Sea r; between Scotland, N. England and Skagerak r; 

 Skagerak r. December: Skagerak r. 



Dinophysis homunculus Stein. — February: 57° N. 8° E. rr. August: Plym. rr. 



D. Michaelis (Ehb.?) Aubiv. — April, May: 57° N. 7° E. r. June: 59° N. 5° E. r; 

 Skagerak r. July: Skagerak r. September: 58° — 59° N. 7° — 5° E. r; Skagerak r + (max.). 

 November: at some points W. of Jutland r. 



