REFERENCES
- 1975 . Proposals for a standardization of diatom terminology and diagnoses . Nova Hedwigia, Beiheft , 53 : 323 – 354 . ANONYMOUS
- ROUND , F. E. , CRAWFORD , R. M. and MANN , D. G. 1990 . The diatoms. Biology and morphology of the genera. , 747 Cambridge : Cambridge University Press .