26 P. T. CLEVE, PLANKtON-RESEARCHES. 



land, northern North Sea, west of Deninark, everywhere r. V. + + +. December, V. + r. 

 M. ror. R.Sg. r. Nh. +. 



1902 January, V. r. Fehruary, North Sea 56° N. 7°6' E. r. Skagerak everywhere 

 30 — O m. ;•, along the coast from Vinga to ViUlerö, r. May, very rare at 57° N. 8°29' E. 

 July, central Skagerak r. M. orr. GuUraarfjord +. — S. 



CLiridius armatus Boeck. — 1901 August, 58° N. 9° E. rare in a haul from 

 300 to O m. 



1902 Fehruary, Skagerak 58°24' N. 9°50' E. rare at the surface and in hauls from 

 420 and 250 m. 58°5' N. 10°37' E. 275—30 m. r. — T. 



Corycaeus angllcus Lubbock. — 1901 January, V. ror. July, M. roo. August, rare 

 N. of Dogger bank, at Hanstholm and Skagen; M. r. September, V. +. M. roo. Octo- 

 ber, V. r. + r. iSfovember, N. of Holland and W. of Denraark, r. V. + ro. December ^ 

 V. rro. M. roo. R.Sg. +. Nh. +. 



1902 January, V. r. M. r. February, North Sea sparingly in the area 55° N. 6° E., 

 56° N. 2°— 3°E. and 57° N. 9° E. Skagerak 58° N. 10°37'E. 120—60 m. r. Vinga 85— 

 50 in. r. May, r at 57° N. 8° E. June, V. roo. July, central Skagerak r. — JS^m. 



Eucalamis crassus Giesbrecht. — 1902 February, Skagerak 58° N. 10°37' E. 20 — O 



in. rr. — S. 



Euchaeta norvegica Boeck. — 1901 February, Norw. 63° N. 4° E. r, 68° N. 13°— 

 14° E. c. August, central Skagerak, rare at the surface, not rare at 20 — 40 m., very 

 abundant from 150 to 300 m. November, off Lindesnees, a single fullgrovvn feraale 

 (surface). 



1902 February, central Skagerak common between 275 — 120 ra. rai'er from 120 

 m., not found at the surface. Jiily, central Skagerak common from 350 to 200 m. — T. 



Euterpe acutifrous Dana. — 1901 November, common off the coast of Holland, 

 less common off the mouth of the Elbe. 

 1902 January, V. r. — Nm. 



Heterorhabdiis iiorvegicus Bokck. — 1901 February, Norw. 68° N. 13°— 14° E. r. 

 August, Skagerak 58° N. 9° — 10° E. very rare at the surface. 



1902 February, Skagerak 58°35' N. 9°50' E. rare between 400 and 250 m.; 58°12' 

 N. 10°29'E. haul from 275 m. r. July, central Skagerak 350—250 m. r. — T. 



Isias clavipes Boeck. — 1901 August, mouth of Elbe r. Skagen, 58° N. 9° E. to 

 58°30'N. 11° E. O m. r. 



1902 July, M. r. Hafstensund, 10—0 m. Gullmarfjord, 50-0 ra. r. — Nm. 



Labldocera Wollastoni Lubbock. — 1901 August, Skagerak 58° N. 10° E. O ra. r, 



M. 30 m. r. October, M. roo. — N^m. 



