in the Ocean at the South Pole. 



173 



76. Grammostomum diver gens. 

 77> Rotalia antarctica. 



CALCAREOUS POLYTHALAMIA. 



78. Rotalia Erebi. 



79- Spiroloculina — ? 



In several forms of the genus Coscinodiscus their green ovaries 

 were recognizable, consequently they must have been alive. 



2. Residue from melted ice, while the ship sailed through a 

 broad tract of brown pancake ice, in 74° to 78° south latitude. 

 (Materials from 75° S. lat., 170° W. long.) 



A. SILICEOUS POLYGASTRICA. 



B. SILICEOUS PHYTOLITHARIA. 

 15. Spongolithis Fustis} Fragm. 



These and the former specimens were sent over in bottles of 

 water. They were the same sealed bottles in which they were col- 

 lected in the year 1842. In the first little bottle, in which the 

 sediment was considerable, almost every atom being a distinct sili- 



