;i2i 



ItlATliMACKyi'; — UACTYr,IOSOLE;iM 



Ajuil: \-> N. '\1' W. lo 17 N. Wr \V. 

 Minj: il° N. (if)^ W. li. 12^ N, \)\ \V. 

 Juiiir. Vl X. r.O' AV lo If) N. 11° W. 

 Oclohrr: 10 X. (iT W. 



Novfiiihrr: 12— i.'i- N. ()1 — ()1° W., not rare to CMiniiioii; 

 17— IK N. IP W., more or less rare: h'\° N. :?0 W., 

 common. 

 Ih'vcnihcr: 11° — 12" X^. (ilr — (i;! W, more or less rare. 

 1W)'.» February: :\2 X. 17- AV. 



Temperature: 1 1 i, mean of ;')2 obs., max. 20, min. s. 



Salinity: of), mean of 27 obs., max. 'M\m, niax. H2.iii. 



Planliton-type. This species occurred as a rule associated 

 with Styli-plankton. It appeared from February to June above the 

 Newfoundland Banks, where it reappeared in November, as had the 

 water, which contained this species, been covered by a sheet of an- 

 other kind of water, that disappeared in November. — S. 



DACTYLIOSOLEN MEDITERRANEUS H. Peragallo. 



;Le Diatomiste PI. XIII fig. 8—9, the variety tenuis Ci.. inc!uded\ 



1S<)S Aptil: ID- N. 2;-'.'" AV., rare. 



Aiigiif^t: Azores; HO"^ X. 2' AV. (very rare) to (51° N. 10" AV. 



(not rare); (>;!" X. «" W.; (>:! — til- X. 20—27" AV., rare. 

 Septcruhrr: oH" X. 2,S" AV , rare; oil- N. 1° AV.; (io- N. 1" 



and 10" W., very rare; Faroes, rare. 

 October: hi' X. 27- AV. to oS" X. rio- AV., rare; (iO' N. 4"— ()' 



A^^, rare. 

 Xoreinbci-. Azores. 

 1899 Febrvai-y: :-J1- N. W AV , rare. 

 Marscli: il" N. S- AV., rare. 



Temperature: IH.?, mean of 10 obs, max. 21. i, min. 9.». 

 Salinity; ;>."). .-.s, mean of 10 obs., max. ;UJ.;i.-,, min. 0I.72. 

 Plankton-type. Noted from the Gulf of Bengal, Mediterranean 

 and the Red Sea, — .S. 



