CVETKOSKA, Aleksandra, Paul B. HAMILTON, Nadja OGNJANOVA-RUMENOVA & Zlatko LEVKOV 2014 (online Jan 14) Observations of the genus Cyclotella (Kützing) Brébisson in ancient lakes Ohrid and Prespa and a description of two new species C. paraocellata sp. nov. and C. prespanensis sp. nov. Nova Hedwigia 98(3/4): 313-340, 100 figs., 1 table