DIXOFLAGELLAT.K — CERATIUM 229 



Salinity: 36.33, mean of 3 obs., max. 36.66, rain. 35. m. 

 Plankton-type: .S. 



CERATIUM PLATYCORNE v. Daday. 



(Termezetrajzi Fiizetek Vol. XI part 2, 1887-88 a Mus. nat. hungarica Budapest- 

 inensi vulgato pag. 101. — r. trijxis van. niifit/i Cl. 1897.) 



1898 January: 45>— 16= N. 17^—11° W. 

 March: Azoi"es to the Engl. Channel. 



April: Azores to the Engl. Channel; 40° N. 41" W. 



May: 41° N. 16° W.; 48° N. 28° W. to 41° N. 60° W. 



September: Engl. Channel. 



October: 57° N. 27" W. 



Xorc/iibcr: area between 50" N. 21° W., 56" N. 23°— 30- W. 



and 50° N. 10" W. 

 December : Canaries; area between 42° N. 16° W., Cape Fini- 



sterre and 50° N. 9° W 



1899 February: 31° N. 40° W. 



March: area between 44° N. 16° W., 46° N. 11° W. and 47° 



N. 8° W. 

 April: area between 40° N. 16^ W., 46° N- 13° W. and 42° 



N. 18° W. 

 October: 56° N. 31° W. 

 November: 51° N. 13° and 21° W. 



Temperature: 14.3, mean of 37 obs., max. 20.(;, min. 9.6. 



Salinity: 36. 19, mean of 29 obs., max. 36.7i, min. 35.03. 



Plankton-type, This species is confined to the eastern Atlan- 

 tic, between the Azores and the English Channel, but in May the 

 area of distribution expands between 40° and 50° N. towards the 

 Newfoundland Banks, and rare specimens drift in October nearly to 

 60° N. — .S. 



