Drawing

الوصف:

Bicosoeca planctonica Kisselew 1931. Bicosoeca cells with lorica measuring 10-15 x 10-15 microns (11-15x13-17 microns), cell diameter about 5 microns Lorica shaped like a bowl with rounded bottom and wide anterior opening with more or less incurved margin. The protoplast is rounded or slightly triangular in outline.