48 P. T. CLEVE, PLANKTON-RESEAECHES. 



V. oor. M. orr. November, from the raouth of the Scheldt to Skagen. V. oor. M. r. 

 Dereniher, V. o + o. M. ror. R.Sg. r. Nh. r. 



1902 Fehruary, the whole North Sea, sparingly. Vinga r. June, M. r. — Liforal. 



Coscinodiseiis oculus iridis Ehrenbeeg. -- 1901 Januari/, M. or. Februari/, V. ror; 

 Norw. G3°— 64°N. 0°— 2° E. c; 68° N. 13°— 14° E. +, 69°— 70° N. 17°— 10°E. +. March, 

 V. orr; M. r; Norw. 73°— 74° N. 19°— 21°E. +. April, V. roa. Norw. 69° N. 14°— 18° 

 E. +. May, Atl. area from 65° N. 6° W. to 61° N. 3° E. and 68° N. 13° E. c to +. No- 

 vember, M. r. December, V. oro. M. ror. li.Sg. r. Nh. ?•. 



1902 January, V. ?•. M. r. February, ai-ea between the Orknej^s and Firth of 

 Forth to 56° N. 3° E. and Skagen. North of Skagen, not rare between 120 and (50 ni., 

 rare between 50 and 40 ra. Stigfjord +. Central Gulhnarfjord ;■. May, sparingly at 

 57° N. 4°— 7° E. — T. " ' 



Coscinodiscus polycliordns Gran. — 1901 January, M. r. February, V. oor. Mardi, 

 V. roo. April, Nor^v. 69° N. 14°— 18° E. December, V. rrr. M. ror. 



1902 February, area between the Orkneys, Firth of Forth and 56°— 57° N. 1°E., 

 along the whole west coast of the Danish peninsula, everywhere sparingly. Skagerak and 

 the coast of Sweden r to +. March, V. roo. M. roo. May, r N.W. of Scotland and at 

 5.5° N. 8°E. — Å^s. 



Coscinodiscus radiatns Ehrenbeug. — 1901 January, M. + r. February, V. oro; 

 Norw. 63°-64°N. 0°— 6° E. to 68°— 70°N. 17°— 10° E. \" +. 7l/arr-/<, Norw* 71°— 74° 

 N. 19°— 22°E. /'. May, V. rro. Atl. 68° N. 6°— 8° E. r. August, sparingly between 

 the Dogger bank, Schleswig and the Elbe. September, V. r. October, V. oor. November, 

 sparingly from the mouth of the Scheldt to Skagen, round Scotland. V. 07V. M. r. De- 

 cember, V. rro. M. rro. R.Sg. r. Nh. r. 



1902 January, M. r. February, the whole North Sea, sparingly. Skagerak and 

 the coast of Sweden r. May, sparingly in the area between the Orkneys, Firth of Forth 

 and 58° N. 1°E. Sparingly from Holland to Skagen. M. roo. June, M. r. July, M.roo. 

 — Ns or rather litoral. 



Coscinodiscus stellaris Roper. — 1901 February, Norw. 63° N. 5°-6°E. r; 68° N. 

 13°— 14°E. +. March, M. r; Norw. 73° N. 19° E. r. April, M. roo. November, -Y . oro. 

 M. r. December, M. roo. 



1902 January, V. r. M. r. February, N. of Jutland r. Vinga, 85 — 50 m. r. Off 

 Vädcröboda 50—25 m. r. — Ns. 



Dactyliosolen antarcticus Castracane. — 1901 February, Norw. 63° fs. 2° — 3° E. 



r. - S. 



Dactyliosolen tennis Cleve. — 1901 February, Norw. 64° N. 0° E. r. — 5. 



