44 r. T. CLEVE, 1'LANKTON-liESBAKCHES. 



rare to cominoii in tlie iiortli. M. + cc. V. c + c. Marek, V. ccc. M. + co. April, 

 M. cc. V. CC7'. May, M. rro. V. roo. Jane, V. roo. — Ns. 



Chsetoceros cinctus Gkan. — 1901 May, Atl. 62° N. 1°E., 63° N. 3° W. + — Ns. 



ChiBtoceros constrictus Gran. — 1901 April, M. oor. Norw. 69° N. 14°— 18°É. +. 

 May, V. oro. Atl. 62° N. 1° E. +. September, V. r. October, V. rro. November, Ska- 

 o'cn 7'. V. o + 0. M. c. December, V. ror. M. oro. 



1902 January, M. n February, 58° N. 5° — 7° E. r, N. of Jutland c. Skagerak, r 

 at 58°25'N. 9°50'E., c at 58° N. 11°8' E., along the Swedish coast and in the fjords c. 

 March, V. ccc. M. ccc. April, M. cc. V. ccc. May, r at Skageo. M. ccr. V. cc +. 

 t/M?ie, V. roo. — Ns. 



Chietoceros contortus Schutt. — 1901 January, V. rco. March, V. ror. April, V. 

 + + +. M. o ++. Norw. 69° N. 14°— 18°E. +. May, V. roo. Jiily, M. occ. Augiist, 

 sparingly off the mouth of the Scheldt. Skagen r. M. + ro. September, V. r. M. o + +. 

 October, V. ccc. M. ccc. November, from 55° N. 0° E. to S. Norway and Skagen. V., c + r. 

 M. c. December, V. + vt. M. rrr. 



1902 February, 57° N. 1° E. r, N. of Jutland c. Skagerak comraon along the coast 

 and in the fjords. March, V. cco. M. ccc. Ajwil, M. cc. V. ccr. May, M, ccr. V. 

 cc +. Jiine, M. r. V. + or. — A^^s. 



Chfetoceros criopliilus Casteacane. — 1901 February, Norw. 63°— 64° N. 0°— 3° E. 

 r +; 68° N. 13°— 14° E. r. May, V. oor. Atl. area: from 67° N. 11° W. to 68° N. 13° E. 

 and 63° N. 2° W. comraon in the south, rare in the north. November, V. ror. 



1902 February, sparingly at 57° N. 3°E., S. of Norway and W. of Jutland. V. oro. 

 April, V. oor. May, M. roo. June, V. r. — T. 



Chaetoceros convolutus Castracane. — 1901 April, Norw. 69° N. 14° — 18° E. +. 

 May, Atl. 63°— 64° N. 2°— 5° E. + c (Gr.an's data.) 



Clifetoceros curvisetus Cleve. — 1901 January, V. + oo. M. + o. February, V. 

 oor; Norw. 63° N. 5° E. r. April, M. roo. May, M. rrr. June, M. or. Jm^;;/, M. + cc. 

 August, common east of S. Jutland, sparingly at Skagen and from M. to Vinga. Septem- 

 ber, M. + cc. October, c + c. M. ccc. November, between 55° N. 0° E., W. Jutland and 

 Skagen. V. c + r. M. c. December, V. + or. M. rro. R.Sg. r. 



1902 February, at 57° N. 6° E. and off' N. Jutland r. Vinga not rare between 

 85 and 50 m., common between 50 and O m., not rare along the coast and in the fjords. 

 March, V. oo +. April, V. oor. May, r N. of Jutland. M. r + o. V. rrc. June, M. r. 

 V. + 00. July, Hafstensund 10 — O ra. +. — Nm. 



Chjetoceros dauicus Cleve. — 1901 November, Skagen r. V. oro. — Nm. 



