frustule

Description:

Coscinodiscus (caw-skin-owe-disk-us) a centric diatom (stramenopile), this genus is common in the marine plankton and has hundreds of species, some of which can achieve a very large size. The cell to the left is in girdle view, with the two valves visible to either end and girdle bands in the middle of the cell, the cell to the right is seen from valve (end) view. This genus has small thickenings (processes) around the margin of the valve. The species are mostly distinguished by the pattern of sculpting of the frustule. Differential interference microscopy.

data on this strain.