198 DISCOVERY REPORTS 



St. RS27. 31. i. 29. 73° 10' S, i79°E. 100-0 m. 



Temp. — o-6o° C. 

 Corethron criophihim Castracane Chaetoceros criophilum Castracane 



DIATOMS FROM MELTED ICE 

 Near St. 560. 30. xii. 30. R.R.S. 'Discovery II'. Approximate position 66° 47' S, 69 19' W. 

 Fragilaria curta H. van Heurck Chaetoceros dichaeta Ehrenberg 



Fragilaria linearis Castracane Rhizosolenia polydactyla Castracane 



Nitzschia Barbieri H. van Heurck var. minor Navicula corymbosa (Agardh) Cleve 



M. Peragallo Amphiprora Oestrupii H. van Heurck 



Navicula subpolaris (M. Peragallo) Hendey Tropidoneis belgicae (H. van Heurck) Heiden et 



Fragilaria antarctica Castracane Kolbe 



Charcotia bifrons (Castracane) Peragallo 



MARINE BIOLOGICAL STATION 



St. MS 86. 25. xi. 30. 2 miles ESE of King Edward Point, East Cumberland Bay, South Georgia. 

 50-0 m. 



Temp. 2-10° C. Salinity 33-22 % . pH 8-07. P 2 5 88. 



Chaetoceros criophilum Castracane Thalassiosira antarctica Comber 



Corethron criophilum Castracane Asteromphalus Hookerii Ehrenberg 



Biddulphia striata Karsten Coscinodiscus centralis Ehrenberg 



Eucampia balaustium Castracane Rhizosolenia styliformis Brightwell 

 Fragilariopsis sublinearis (H. van Heurck) Heiden 

 et Kolbe 



St. MS 88. 10. xii. 30. Position as St. MS 86. 50-0 m. 



Temp. 2-75° C. Salinity 32-63 % . pH 8-07. P 2 5 72. 

 Fragilariopsis sublinearis (H. van Heurck) Heiden Coscinodiscus centralis Ehrenberg 

 et Kolbe Chaetoceros criophilum Castracane 



Sts. MS 89, 90, 92. 18. xii. 30-8. i. 31. Position as St. MS 86. 50-0 m. 

 Fragilariopsis sublinearis (H. van Heurck) Heiden Coscinodiscus centralis Ehrenberg 



et Kolbe Licmophora Lyngbyei (Kiitzing) Grunow 



St. MS 94. 8. i. 31. Moranen Fjord, South Georgia. 36-0 m. 



Temp. 1-70° C. Salinity 30-88 % . pU 8-22. P 2 5 54. 

 Coscinodiscus centralis Ehrenberg Corethron criophilum Castracane 



Chaetoceros criophilum Castracane Coscinodiscus oculus-Iridis Ehrenberg 



St. MS 95. 15. i. 31. 2 miles ESE of King Edward Point, East Cumberland Bay, South Georgia. 



50-0 m. 



Temp. 1-50° C. Salinity 33-58 % . pH 8-12. P 2 O s 83. 

 Coscinodiscus centralis Ehrenberg Coscinodiscus oculus-Iridis Ehrenberg 



Fragilariopsis sublinearis (H. van Heurck) Heiden Licmophora Lyngbyei (Kiitzing) Grunow 



et Kolbe 



