From Catalogue of Diatom Names: "?Name first published as a subgenus of Cymbella (Krammer 1982, p. 20, ref. 006874). Rank of name later changed to genus (Krammer 1997, p. 6. ref. 006780). This name is not validly published as a genus name in Krammer 1997, lacking a full and complete reference to the Latin description that can be found in Krammer 1982.?"