Achnanthes altaica var. minor Flower & V.J.Jones, 1989 accepted as
Psammothidium altaicum (Poretzky) L.Bukhtiyarova, 1996 (source of synonymy)
Psammothidium L. Bukhtiyarova & F.E. Round, 1996 (original description)
Psammothidium abundans (Manguin, Bourrelly & Manguin) L.Bukhtiyarova, 1996 (new combination reference)
Psammothidium abundans f. rosenstockii (Lange-Bertalot) L.Bukhtiyarova & Round, 1996 accepted as
Achnanthes rosenstockii Lange-Bertalot, 1989 (new combination reference)
Psammothidium altaicum (Poretzky) L.Bukhtiyarova, 1996 (original description)
Psammothidium bioretii (Germain) L.N.Bukhtiyarova & Round, 1996 (new combination reference)
Psammothidium bristolicum L.Bukhtiyarova, 1996 (original description)
Psammothidium buccolum (Cholnoky) L.Bukhtiyarova, 1996 (new combination reference)
Psammothidium didymum (Hustedt) L.Bukhtiyarova & Round, 1996 accepted as
Achnanthes didyma Hustedt, 1933 (new combination reference)
Psammothidium grischunum (Wuthrich) Bukhtiyarova & Round, 1996 accepted as
Achnanthes grischuna Wuthrich, 1975 (new combination reference)
Psammothidium grischunum f. daonensis (Lange-Bertalot) Bukhtiyarova & Round, 1996 accepted as
Achnanthes daonensis Lange-Bertalot, 1989 (new combination reference)
Psammothidium helveticum (Hustedt) L.N.Bukhtiyarova & Round, 1996 (new combination reference)
Psammothidium investians (J.R.Carter) L.Bukhtiyarova, 1996 (new combination reference)
Psammothidium kuelbsii (Lange-Bertalot) L.Bukhtiyarova & F.E.Round, 1996 accepted as
Achnanthes kuelbsii Lange-Bertalot, 1989 (new combination reference)
Psammothidium lacus-vulcani (Lange-Bertalot & Krammer) Bukhtiyarova in Bukhtiyarova & Roun, 1996 (new combination reference)
Psammothidium lauenburgianum (Hustedt) Bukhtiyarova & Round, 1996 accepted as
Achnanthes lauenburgiana Hustedt, 1950 (new combination reference)
Psammothidium levanderi (Hustedt) L.Bukhtiyarova & Round, 1996 accepted as
Achnanthes levanderi var. levanderi Hustedt, 1933 (new combination reference)
Psammothidium marginulatum (Grunow) L.Bukhtiyarova & Round, 1996 accepted as
Achnanthes marginulata var. marginulata Grunow in Cleve & Grunow, 1880 (new combination reference)
Psammothidium pseudoswazi (J.R.Carter) L.Bukhtiyarova & Round, 1996 (new combination reference)
Psammothidium punctulatum (Simonsen) L.Bukhtiyarova & Round, 1996 (new combination reference)
Psammothidium reversum (Lange-Bertalot & Krammer) L.Bukhtiyarova & Round, 1996 (new combination reference)
Psammothidium rossii (Hustedt) L.Bukhtiyarova & Round, 1996 accepted as
Achnanthes rossii Hustedt, 1954 (new combination reference)
Psammothidium sacculum (J.R.Carter) L.Bukhtiyarova, 1996 (new combination reference)
Psammothidium scoticum (R.J.Flower & V.J.Jones) L.Bukhtiyarova & Round, 1996 accepted as
Achnanthes scotica R.J.Flower & V.J.Jones, 1989 (new combination reference)
Psammothidium stauroneioidum (Bourrelly & Manguin) L.Bukhtiyarova, 1996 accepted as
Achnanthes stauroneioides Manguin in Bourrelly & Manguin, 1954 (new combination reference)
Psammothidium strenzkei (Hustedt) L.Bukhtiyarova, 1996 accepted as
Navicula strenzkei Hustedt, 1962 (new combination reference)
Psammothidium subatomoides (Hustedt) L.Bukhtiyarova & Round, 1996 accepted as
Navicula subatomoides Hustedt, 1936 (new combination reference)
Psammothidium ventralis (Krasske) Bukhtiyarova & Round, 1996 (new combination reference)