Glossary
Like the rest of this website, the glossary is a work in progress. If we’ve missed a term, please contact us to let us know the term and references.
Biraphid
Diatoms with a raphe on each valve are termed biraphid. Examples of biraphid genera include Amphora, Epithemia, Gomphonema, Navicula and Mastogloia.
See also araphid and monoraphid.