!88 DISCOVERY REPORTS 



St. 1589. 5.V. 35. ii° 32-3' N, 52 03-0' E. 1 00-0 m. 



Temp. 29-78° C. Salinity 35-50 %„. pH 8-26. 

 Planktoniella sol (Wallich) Schiitt Rhizosolenia styliformis Brightwell 



Rhizosolenia alata Brightwell 



R.R.S. WILLIAM SCORESBY 



St. WS 100. 23. iv. 27. 50° 53' S, 6i° 26' W. 100-0 m. 



Temp. 7-78° C. Salinity 33-79 %o- P 2 6 78. 



Chaetoceros sociale Lauder Actinoptychus senarius Ehrenberg 



Chaetoceros convolution Castracane Corethron criophilum Castracane 



Chaetoceros debile Cleve Chaetoceros neglectum Karsten 



Rhizosolenia alata Brightwell Coscinodiscus sub-bidliens Jorgensen 



Chaetoceros peruvianum Brightwell Rhizosolenia styliformis Brightwell 



St. WS101. 23. iv. 27. 50° 27' S, 62° 06' W. 100-om. 



Temp. 8-20° C. Salinity 33-66 °/ 00 . P 2 5 70. 

 Actinoptychus senarius Ehrenberg Chaetoceros criophilum Castracane 



Rhizosolenia alata Brightwell Melosira sol (Ehrenberg) Kutzing 



Chaetoceros sociale Lauder Corethron criophilum Castracane 



St. WS 103. 23. iv. 27. 49° 40' S, 63° 13' W. 100-0 m. 



Temp. 8-49° C. Salinity 33-67 % . P 2 5 7°- 

 Actinoptychus senarius Ehrenberg 



St. WS 104. 24. iv. 27. 49° 18' S, 63° 40' W. 100-0 m. 



Temp. 8-24° C. Salinity 33-57 % . P 2 5 76. 

 Rhizosolenia styliformis Brightwell Chaetoceros Chunii Karsten 



Chaetoceros criophilum Castracane Actinoptychus senarius Ehrenberg 



St. WS 105. 24. iv. 27. 48° 50' S, 64° 24' W. 1 00-0 m. 



Temp. 8-88° C. Salinity 33-49 %o- p 2 5 75- 

 Actinoptychus senarius Ehrenberg Rhizosolenia alata Brightwell 



Ditylum Brightzvellii (West) Grunow 



St. WS 106. 24. iv. 27. 48° 25' S, 65° 00' W. 100-0 m. 



Temp. 9-88° C. Salinity 33-22 °/ 00 . P 2 5 68. 

 Rhizosolenia alata Brightwell Actinoptychus senarius Ehrenberg 



Corethron criophilum Castracane 



St. WS 107. 25. iv. 27. 48 00' S, 65 29' W. 100-0 m. 



Temp. 10-55° C. Salinity 33-06 °/ 00 . P 2 5 70. 

 Actinoptychus senarius Ehrenberg Rhizosolenia hebetata Bailey 



Ditylum Brightwellii (West) Grunow Rhizosolenia alata Brightwell 



St. WS 469. 10. xi. 29. 56° 42' S, 57° 00' W. 100-0 m. 



Temp. 3-49° C. Salinity 34-10 % . 



Rhizosolenia alata Brightwell Dactyliosolen antarcticus Castracane 



Corethron criophilum Castracane Biddulphia striata Karsten 



Thalassiosira antarctica Comber Nitzschia seriata Cleve 



Fragilariopsis antarctica (Castracane) Hustedt Rhizosolenia crassa Karsten 



Rhizosolenia styliformis Brightwell Rhizosolenia polydactyla Castracane 



Chaetoceros dichaeta Ehrenberg Eucampia balaustium Castracane 



