Thanks for the note. I think that you are referring to Sphaerocystis schroeteri rather than Schaerocystis. I labelled it Radicoccus because of the clusters of 4 cells in cruciform arrangement and the cells are more spherical than ellipsoid. I believe that this organism is quite rare but it has apparently been found in this area. This is only a guess on my part. I am interested in why you think that it is Sphaerocystis rather than Radiococcus. Many thanks for looking at the picture and for your comments.