Achnanthes chilensis var. subaequalis Reimer, 1966 (original description)
Achnanthes deflexa C.W.Reimer, 1966 (original description)
Achnanthes hustedtii (Krasske) Reimer, 1966 accepted as
Cocconeis hustedtii Krasske, 1923 (new combination reference)
Achnanthes lanceolata var. lanceolatoides (Sovereign) Reimer, 1966 accepted as
Achnanthes lanceolatoides H.E.Sovereign, 1958 (new combination reference)
Achnanthes lanceolata var. omissa Reimer, 1966 (original description)
Achnanthes lapponica var. ninckei (H.Guermeur & Manguin) C.W.Reimer, 1966 accepted as
Achnanthes ninckei P.Guermeur & E.Manguin, 1953 (new combination reference)
Achnanthes peragalloi var. parvula (R.M.Patrick) C.W.Reimer, 1966 accepted as
Achnanthes oestrupii var. parvula R.Patrick, 1945 (new combination reference)
Achnanthes sublaevis var. crassa C.W.Reimer, 1966 (original description)
Achnanthes wellsiae Reimer, 1966 (original description)
Amphicampa mirabilis sensu Patrick & Reimer, 1966 (original description)
Anomoeoneis vitrea (Grunow) R.Ross, 1966 accepted as
Gomphonema vitreum Grunow, 1878 (new combination reference)
Caloneis fenzlii (Grunow) Patrick, 1966 accepted as
Navicula fenzlii Grunow, 1863 (new combination reference)
Caloneis hebes (Ralfs) R.M.Patrick, 1966 accepted as
Navicula hebes f. hebes Ralfs in Pritchard, 1861 (new combination reference)
Caloneis lewisii var. inflata (Schultze) Patrick, 1966 accepted as
Navicula trinodis var. inflata Schultze, 1889 (new combination reference)
Caloneis limosa (Kützing) R.M.Patrick, 1966 accepted as
Navicula limosa f. limosa Kützing, 1844 (new combination reference)
Caloneis oregonica (Ehrenberg) R.M.Patrick, 1966 accepted as
Pinnularia oregonica Ehrenberg, 1845 (new combination reference)
Caloneis oregonica var. quadrilineata (Grunow ex Cleve) R.M.Patrick, 1966 accepted as
Caloneis formosa var. quadrilineata Grunow ex Cleve, 1894 (new combination reference)
Caloneis ventricosa var. alpina Cleve, 1894 accepted as
Caloneis silicula var. alpina Cleve, 1894 (new combination reference)
Caloneis ventricosa var. minuta (Grunow) F.W.Mills, 1934 accepted as
Navicula ventricosa f. minuta Grunow, 1880 (new combination reference)
Caloneis ventricosa var. subundulata (Grunow) Patrick, 1966 accepted as
Navicula ventricosa var. subundulata Grunow, 1880 (new combination reference)
Eunotia curvata var. capitata (Grunow) R.M.Patrick, 1966 accepted as
Synedra lunaris var. capitata Grunow, 1862 (new combination reference)
Frustulia rhomboides var. capitata (Mayer) R.M.Patrick, 1966 accepted as
Frustulia saxonica var. capitata A.Mayer, 1917 (new combination reference)
Gyrosigma exilis (Grunow) C.W.Reimer, 1966 accepted as
Pleurosigma spencerii var. exilis Grunow, 1880 (new combination reference)
Gyrosigma nodiferum (Grunow) Reimer, 1966 accepted as
Pleurosigma nodiferum Grunow, 1880 (new combination reference)
Gyrosigma spencerii var. curvula (Grunow) Reimer, 1966 accepted as
Pleurosigma spenceri f. curvula Grunow in Cleve & Möller, 1879 (new combination reference)
Gyrosigma terryanum f. fontanum Reimer, 1966 (original description)
Hannaea R. Patrick in R. Patrick & C.W. Reimer, 1966 (original description)
Hannaea arcus (Ehrenberg) R.M.Patrick in Patrick & Reimer, 1966 (new combination reference)
Hannaea arcus var. amphioxys (Rabenhorst) R.M.Patrick, 1966 accepted as
Hannaea arcus (Ehrenberg) R.M.Patrick in Patrick & Reimer, 1966 (new combination reference)
Navicula capitata var. lueneburgensis (Grunow) Patrick, 1966 † (new combination reference)
Navicula cuspidata var. obtusa Patrick, 1966 (original description)
Navicula elginensis var. lata (M.Peragallo) R.M.Patrick, 1966 accepted as
Navicula dicephala var. lata M.Peragallo, 1908 (new combination reference)
Navicula elginensis var. neglecta R.M.Patrick, 1966 accepted as
Navicula neglecta Krasske, 1929 (new combination reference)
Navicula elginensis var. rostrata (A.Mayer) R.M.Patrick, 1966 accepted as
Navicula dicephala var. rostrata A.Mayer, 1917 (new combination reference)
Navicula elmorei Patrick, 1966 (original description)
Navicula heufleri var. leptocephala (Brebisson) Patrick, 1966 accepted as
Navicula leptocephala Brébisson, 1880 (new combination reference)
Navicula maculata var. orbiculata Patrick, 1966 (original description)
Navicula pennsylvanica Patrick, 1966 (original description)
Navicula rhynchocephala var. germainii (Wallace) Patrick, 1966 accepted as
Navicula germainii Wallace, 1960 (new combination reference)
Navicula vanheurckii R.M.Patrick, 1966 (original description)
Neidium affine var. humerus Reimer, 1959 (original description)
Neidium bisulcatum var. subundulatum (Grunow) Reimer, 1966 (new combination reference)
Neidium sacoense Reimer, 1966 (original description)
Peronia intermedium (H.L. Smith) Patrick, 1966 (new combination reference)
Pinnularia abaujensis var. linearis (Hustedt) R.M.Patrick, 1966 accepted as
Pinnularia gibba var. linearis Hustedt, 1930 (new combination reference)
Pinnularia abaujensis var. rostrata (R.M.Patrick) R.M.Patrick, 1966 accepted as
Pinnularia gibba var. rostrata R.M.Patrick, 1945 (new combination reference)
Pinnularia abaujensis var. subundulata (Mayer) R.M.Patrick, 1966 (new combination reference)
Pinnularia acuminata var. bielawskii (Héribaud & M.Peragallo) R.M.Patrick, 1966 accepted as
Navicula hemiptera var. bielawskii Héribaud & M.Peragallo, 1893 (new combination reference)
Pinnularia acuminata var. interrupta (Cleve) R.M.Patrick, 1966 accepted as
Pinnularia hemiptera var. interrupta Cleve, 1895 accepted as
Pinnularia hybrida var. interrupta Cleve-Euler, 1934 (new combination reference)
Pinnularia bihastata (A.Mann) R.M.Patrick, 1966 (new combination reference)
Pinnularia boyeri R.M.Patrick, 1966 (original description)
Pinnularia caudata (C.S.Boyer) Patrick, 1966 accepted as
Pinnularia viridis var. caudata Boyer, 1916 (new combination reference)
Pinnularia cuneicephala (A.Mann) R.M.Patrick, 1966 (new combination reference)
Pinnularia divergens var. parallela (Brun) Frenguelli, 1933 † accepted as
Pinnularia parallela var. parallela Brun, 1895 (new combination reference)
Pinnularia formica Ehrenberg, 1854 accepted as
Pinnularia formica (Ehrenberg) R.M.Patrick, 1966 † (new combination reference)
Pinnularia mormonorum (Grunow ex A.Schmidt) Boyer, 1916 accepted as
Navicula mormonorum Grunow ex A.Schmidt, 1876 (new combination reference)
Pinnularia schweinfurthii (A.Schmidt) R.M.Patrick, 1966 accepted as
Navicula schweinfurthi A.W.F.Schmidt, 1876 (new combination reference)
Pinnularia termitina (Ehrenberg) R.M.Patrick, 1966 (new combination reference)
Pinnularia torta (A.Mann) R.M.Patrick, 1966 (new combination reference)
Pleurosigma salinarum var. boyeri (Keeley) Reimer, 1966 (new combination reference)
Semiorbis R. Patrick in R. Patrick & C.W. Reimer, 1966 (original description)
Semiorbis hemicyclus (Ehrenberg) R.M.Patrick, 1966 accepted as
Synedra hemicyclus Ehrenberg, 1840 (new combination reference)
Synedra fasciculata var. truncata (Greville) Patrick, 1966 (new combination reference)