Achnanthidium alteragracillimum Round & Bukhtiyarova, 1996 (original description)
Achnanthidium altergracillima (Lange-Bertalot) Round & Bukhtiyarova, 1996 accepted as
Achnanthes alteragracillima Lange-Bert., 1993 accepted as
Achnanthidium gracillimum (Meister) Lange-Bertalot, 2004 accepted as
Microneis gracillima Meister, 1912 (new combination reference)
Achnanthidium biasolettianum (Grunow) Bukhtiyarova, 1995 accepted as
Achnanthes biasolettiana var. biasolettiana Grunow accepted as
Achnanthes biasolettiana Grunow, 1880 accepted as
Achnanthidium pyrenaicum (Hustedt) H.Kobayasi, 1997 accepted as
Achnanthes pyrenaica var. pyrenaica Hustedt, 1939 (new combination reference)
Achnanthidium exile (Kützing) Heiberg, 1863 accepted as
Achnanthes exilis var. exilis Kützing, 1833 (new combination reference)
Achnanthidium kranzii (Lange-Bertalot) Round & Bukhtiyarova, 1996 accepted as
Achnanthes kranzii Lange-Bertalot, 1989 (new combination reference)
Achnanthidium macrocephalum (Hustedt) Round & Bukhtiyarova, 1996 accepted as
Achnanthes minutissima var. macrocephala Hustedt, 1937 (new combination reference)
Achnanthidium saprophilum (H.Kobayasi & S.Mayama) Round & L.Bukhtiyarova, 1996 accepted as
Achnanthes minutissima var. saprophila H.Kobayasi & Mayama, 1982 (new combination reference)
Karayevia clevei (Grunow) Round & Bukhtiyarova, 1999 (new combination reference)
Karayevia laterostrata (Hustedt) Round & Bukhtiyarova, 1996 accepted as
Achnanthes laterostrata Hustedt, 1933 (new combination reference)
Kolbesia kolbei (Hustedt) F.E.Round & L.N.Bukhtiyarova ex Fourtanier & Kociolek, 1999 accepted as
Achnanthes kolbei var. kolbei Hustedt, 1930 (new combination reference)
Kolbesia ploenensis (Hustedt) Round & L.Bukhtiyarova ex Round, 1998 accepted as
Achnanthes ploenensis Hustedt, 1930 represented as
Karayevia ploenensis (Hustedt) Bukhtiyarova, 1999 (new combination reference)
Planothidium F.E. Round & L. Bukhtiyarova, 1996 (original description)
Planothidium calcar (Cleve) Round & Bukhtiyarova, 1996 (new combination reference)
Planothidium delicatulum (Kützing) Round & Bukhtiyarova, 1996 accepted as
Achnanthidium delicatulum f. delicatulum Kützing, 1844 (new combination reference)
Planothidium dubium (Grunow) Round & Bukhtiyarova, 1996 (new combination reference)
Planothidium ellipticum (Cleve) Round & Bukhtiyarova, 1996 (new combination reference)
Planothidium engelbrechtii (Cholnoky) Round & L.Bukhtiyarova, 1996 accepted as
Achnanthes engelbrechtii var. engelbrechtii Cholnoky, 1955 (new combination reference)
Planothidium fragilarioides (J.B.Petersen) Round & Bukhtiyarova, 1996 accepted as
Achnanthes fragilarioides J.B.Petersen, 1924 (new combination reference)
Planothidium frequentissimum (Lange-Bertalot) F.E.Round & Bukhtiyarova, 1996 accepted as
Achnanthes lanceolata Lange-Bertalot, 1993 (new combination reference)
Planothidium haukianum (Grunow) Round & Bukhtiyarova, 1996 (new combination reference)
Planothidium lanceolatum (Brébisson ex Kützing) Bukhtiyarova, 1999 (new combination reference)
Planothidium oestrupii (A.Cleve) Round & L.Bukhtiyarova, 1996 (new combination reference)
Planothidium peragallii (Brun & Héribaud) Round & Bukhtiyarova, 1996 (new combination reference)
Planothidium rostratum (Østrup) Lange-Bertalot, 1999 (new combination reference)
Planothidium septentrionalis (Østrup) Round & Bukhtiyarova, 1996 accepted as
Achnanthes septentrionalis var. septentrionalis Østrup, 1910 (new combination reference)
Rossithidium F.E. Round & L. Bukhtiyarova, 1996 (original description)
Rossithidium linearis (W. Smith) Round & Bukhtiyarova, 1996 accepted as
Achnanthidium lineare W.Smith, 1855 (new combination reference)
Rossithidium petersennii (Hustedt) Round & Bukhtiyarova, 1996 (new combination reference)
Rossithidium pusillum (Grunow) Round & Bukhtiyarova, 1996 accepted as
Achnanthes linearis var. pusilla (Grunow) Cleve, 1895 accepted as
Achnanthes pusilla Grunow in Cleve & Grunow, 1880 (new combination reference)