IIIATOMACK.K — CH^KTOCKRO.S 'M'6 



July in the Sargasso Sea and tlie Florida Current, advanced in 

 August beyond 40' N. and appeared round the Azores fi-om August 

 to the end of the vear. S(■.F^Kol)Hl{ mentions il from Naples. — 1). 



CHiETOCEROS VOLANS Schi tt. 



;/■. rurr-i-n.-^ Ci.. Fifteenth annual report of the Fisliery P>oard for Scotlaml. foi- 



181)6, pag. 2i)H, fig. 8.) 



1897 Decern hi ■/■ 



1898 Ja/niari/: lt>^ N. 18' \V.; iV N. 22' W. lo W N. 18 W.; 



46^ N. 11- W.; 4' S. 29' \V.; 20' iN. 7i- W. 

 Febrnan/: 16^ N. 71° W. 

 3/«/rA:'area between m N. 29' W., 48' N. fV W., 49 N. 



83° W. and 43° N. 50° W.; (M' N. 25° W.; 9° N. 59" \V. 

 April: area between 39° N. 24' W., 4r N. 19- W.. 50^ N. 



9° W. and 48° N. 29° W. 

 Mm/: 45' N. 43' W.; 41° N. 51' W. 

 Jnne: Azores; 44° N. 9° W.; 10° N. 53° W. 

 Juhj: B2° N. 0°— 4° W.; 77° N. 7° E. (abundant); 40'— 41' N. 



69°— 58' \V. 

 Aufjust: Azores; 77' N. 8' — 12° E. (very common'; 17 X. 71 



W.; 40°— 41° N. 66°— 62° W. 

 Septemhe/-: 59° N. 2° W.; 66° N. 18' W. (rare . 

 October: Azores; 57' N. 18" W. (rare). 

 Xoveiiiber: 48' N. 29 W.; 55" N. 21° W. (rare). 

 December: 41° N. 66° W.; 47° N. 45° W. (rare). 



1899 Scpteinbor: 65° N. 3° W. (very common); 65° N. 2' W. (rare). 

 Xoreinber: 51' .\. 13' \V., rare. 



Temperature: 14. 1, mean i)f 52 obs., max. 27. i'. inin. 5.;ii. 



Salinity: ;'>5.(,!., mean of 11 obs., max. 36. is, min. 31. si. 



Plankton-type. Tliis form, which perhaps is a variety of C 

 jiernrianus, occurred in the spring, March and April, on the wide 

 area between the Azores, the Engl. Channel, and the Newfoundland 

 Banks and also south of Iceland, in .Inly in the Fiiroe Channel, in 

 July and August abundantly al Spitzbergen; later it was seen only 

 rarelv. — S'. 



