20 P. T. CLKVK, THE 1'LANKTON OF THE NORTH SEA AND THE SKAGEKAK. 



0. typiciis Kröyek. — January: central Skagernk rr. February: rare at 55° N. 6° 

 — 7°E.; M. r. April: N. of Jutland r. July — Aagust: common from N. Scotlaiid to 

 S. Noi'\vay, rare from Holland to Sk.; M. -|-, V. r. S&pteiiiber : M. and V. -f- Octoher: 

 M. 6', V. -\- r. November: more or less common round Scotland and thence to S. N(jrway 

 and W. Jutland; M. and V. r. December: M. r. 



Corycfeii8 angliciis Lubb. — February: from tlie N. of the Dogger Bank to Sk- 

 July— August: rare from Holland to Sk.; at 58° N. 4° E. Oclober: M. r. November: W. 

 of Jutland moi-e or less common; M. and V. rr, Vinga (30 rn.). 



Enterpe acutifrous Dana. — November: from the coast of Holland to the Limfiord, 

 most common W. of Schleswig; M. and V. r. December: V. rr. 



Isias clavipes Boeck. — July — Aiu/ust: ofl' the Dutch coast; M. -)-. September: 

 M. +, V. r. 



Labidocera WoUastonii Lubb. — July — August: ofi' the Dutch Coast. November: 

 ■from about 56°— 57° N. 4°— 5° E. to Sk.; V. rr. 



Metridia lucens Boeck {M. hibemlca Brady & Robts). — January: central Skagerak 

 rr. February: W. of Sk. r. June: the Shetlands -|— July — August: the Slietlands (200 

 — 50 metres) and S.W. of Norway. November: VV. of Scotland, central North Sea and 

 S.W. of Norway. December: V. rr. 



Microsetella atlautica Bkady c^ Robts. — January: Dröbak (oO m.). February: 

 above the Fisher Bank. July: the Shetlands (200 — 10 metres). 



Oitliona pluinifera Baihd. — January: central Skagerak rr. February: from the 

 Dogger Bank to Sk. r. Jv.ne and July the Shetlands. November: at 57° N. 4° E. and 

 58° N. 8°E. rare. v..,, i .'. ■. ,:•-,.■, . 



O. similis Claus. — January: not rare in the Baltic Current. February: otf the 

 Dutch coast r; from 56° — 58° N. 0° E. to Sk. r; M. rr, V. r. April: very rare at some 

 spöts in the North Sea; V. /■. May: N.E. of Scotland; M. c, V. -|-. June: the Shet- 

 lands -\-, M. c, V. c. July — August: common from the north of Scotland to Dogger 

 Bank and the Skagerak, also S. of the Dogger Bank to the Scheldt; the Shetlands; M. and 

 V c. September: M. and V. c. October: M. r, V r -j~- November: round Scotland, thence 

 to S. Norway and W. Jutland. Vinga -|-, M. c, V. -|-v. December: M. and V. -f-. 



Oiicaea inimita Giesbh. — Jauuary: Dröbak (oO m. «■)• February: E. of the Firth 

 of Forth rr; 58° N. 3° E. r. June: the Shetlands rr. .July: the Shetlands (200—50 m. rr). 



Paracalanus parvus Claus. — February: rare oft" the Dutch coast and W. of Jutland. 

 April: very rare north of Jutland. July — August: not rare from Holland to Sk. and from 

 the north of Scotland to the central North Sea. In July not rare, but in August very 

 common along the Swedish west coast. September : cc at M. and V. October: M. c. No- 

 veuibrr: not rare round Scotland and thence to the west of Jutland and Skagerak; M. r, 

 V. +• December: M. r -f . 



