Navicula abruptoides Hustedt, 1964 (original description)
Navicula aestimata Hustedt, 1964 (original description)
Navicula applanata Hustedt, 1964 (original description)
Navicula applicita f. applicita Hustedt, 1964 (original description)
Navicula applicita f. tenuis Hustedt, 1964 (original description)
Navicula applicitoides Hustedt, 1964 (original description)
Navicula approximata f. manca (Schmidt in Schmidt et al.) Hustedt, 1964 accepted as
Navicula hennedyi var. manca A.Schmidt, 1874 (new combination reference)
Navicula approximata f. morei Hustedt, 1964 accepted as
Navicula moreii O'Meara, 1876 (new combination reference)
Navicula approximata var. finitima (Cleve) Hustedt, 1964 accepted as
Navicula finitima Janisch, 1888 (new combination reference)
Navicula approximata var. schleinitzii (Janisch in Schmidt et al.) Hustedt, 1964 accepted as
Navicula schleinitzii Janisch in Schmidt et al., 1881 (new combination reference)
Navicula approximatella f. approximatella Hustedt, 1964 (original description)
Navicula approximatella f. glabra Hustedt, 1964 (original description)
Navicula approximatoides Hustedt, 1987 (original description)
Navicula bifurcatula Hustedt, 1964 (original description)
Navicula clavata f. corpulenta (Mann) Hustedt, 1964 accepted as
Navicula corpulenta Mann, 1925 (new combination reference)
Navicula clavata f. elliptica (Schmidt in Schmidt et al.) Hustedt, 1964 accepted as
Navicula clavata var. elliptica Schmidt in Schmidt et al., 1874 (new combination reference)
Navicula clavata f. elongata (H. Peragallo) Hustedt, 1964 accepted as
Navicula clavata var. elongata H. Peragallo, 1888 (new combination reference)
Navicula clavata f. indica (Greville) Hustedt, 1964 (new combination reference)
Navicula clavata f. proxima (Janisch in Schmidt et al.) Hustedt, 1964 accepted as
Navicula proxima Janisch in Schmidt et al., 1881 (new combination reference)
Navicula clavata f. rhombica (Cleve) Hustedt, 1964 accepted as
Navicula clavata f. rhombica Cleve, 1894 (new combination reference)
Navicula clavata f. subconstricta Hustedt, 1964 (original description)
Navicula clavata var. distenta (Kuntze) Hustedt accepted as
Navicula distenta Schmidt in Schmidt et al., 1874 (new combination reference)
Navicula crebra Hustedt, 1964 (original description)
Navicula disclusa Hustedt, 1964 (original description)
Navicula discreta Hustedt, 1964 (original description)
Navicula disposita Hustedt, 1964 (original description)
Navicula dithmarsica König ex Hustedt, 1964 (original description)
Navicula durandii f. rhomboidea (Castracane) Hustedt, 1964 accepted as
Navicula bullata var. rhomboidea Castracane, 1886 (new combination reference)
Navicula explanata Hustedt, 1948 (original description)
Navicula explicata Hustedt, 1964 (original description)
Navicula explicatoides Hustedt, 1964 (original description)
Navicula fundata Hustedt, 1964 accepted as
Lyrella fundata (Hustedt) Siqueiros Beltrones in Siqueiros Beltrones et al., 2020 (original description)
Navicula hennedyella Hustedt, 1987 (original description)
Navicula hennedyi f. bacillifera (Cleve) Hustedt, 1964 (new combination reference)
Navicula hennedyi f. californica (Greville) Hustedt, 1964 accepted as
Navicula californica var. californica Greville, 1859 (new combination reference)
Navicula hennedyi f. couperi (J.W. Bailey) Hustedt, 1964 (new combination reference)
Navicula hennedyi f. cuneata (Schmidt in Schmidt et al.) Hustedt, 1964 accepted as
Navicula hennedyi var. cuneata Schmidt in Schmidt et al., 1874 (new combination reference)
Navicula hennedyi f. furcata (Peragallo & Peragallo) Hustedt, 1964 accepted as
Navicula hennedyi var. furcata Peragallo & Peragallo, 1897 (new combination reference)
Navicula hennedyi f. granulata (Grunow in Schmidt et al.) Hustedt, 1964 accepted as
Navicula hennedyi var. granulata Grunow, 1874 (new combination reference)
Navicula hennedyi f. letourneurii (Pantocsek) Hustedt, 1964 accepted as
Navicula letourneurii Pantocsek, 1889 (new combination reference)
Navicula hennedyi f. typica Hustedt, 1964 (original description)
Navicula hennedyi f. undulata (Cleve) Hustedt, 1964 accepted as
Navicula hennedyi var. undulata Cleve, 1881 (new combination reference)
Navicula hennedyi f. vermicularis (Jurilj) Hustedt, 1964 accepted as
Navicula hennedyi f. vermicularis Jurilj, 1957 (new combination reference)
Navicula hennedyi var. longesulcata Hustedt, 1964 (original description)
Navicula hennedyoides Hustedt, 1964 (original description)
Navicula illustra var. neapolitana Hustedt, 1964 (original description)
Navicula illustrioides Hustedt, 1964 (original description)
Navicula impercepta Hustedt, 1964 (original description)
Navicula implana Hustedt, 1964 (original description)
Navicula irrorata f. mexicana (Cleve) Hustedt, 1964 accepted as
Navicula irrorata var. mexicana Cleve, 1895 (new combination reference)
Navicula irrorata f. typica Hustedt, 1964 (original description)
Navicula irroratoides f. elliptica Hustedt, 1964 (original description)
Navicula irroratoides f. irroratoides Hustedt, 1964 (original description)
Navicula lyra f. americana (Heiden in Schmidt et al.) Hustedt, 1964 accepted as
Navicula lyra var. americana Heiden in Schmidt et al., 1905 (new combination reference)
Navicula lyra f. denudata (Grunow in Cleve) Hustedt, 1964 accepted as
Navicula lyra var. denudata Grunow Ms. in Cleve, 1895 (new combination reference)
Navicula lyra f. elliptica (Schmidt) Hustedt, 1964 accepted as
Navicula lyra var. elliptica Schmidt, 1874 (new combination reference)
Navicula lyra f. recta (Greville) Hustedt, 1964 accepted as
Navicula lyra f. recta Greville, 1859 (new combination reference)
Navicula lyra f. subtypica (Schmidt in Schmidt et al.) Hustedt, 1964 accepted as
Navicula lyra var. subtypica A.Schmidt, 1874 accepted as
Lyrella lyra var. subtypica (Heiden) Siqueiros Beltrones in Siqueiros Beltrones et al., 2020 (new combination reference)
Navicula lyrella Hustedt, 1964 (original description)
Navicula lyroides f. constricta Hustedt, 1964 (original description)
Navicula majuscula Hustedt, 1964 (original description)
Navicula majusculoides Hustedt, 1964 (original description)
Navicula miranda Hustedt, 1964 (original description)
Navicula novaeseelandiae Hustedt, 1964 (original description)
Navicula nyella Hustedt, 1964 (original description)
Navicula perplexoides Hustedt, 1964 (original description)
Navicula robertsiana f. abnormis (Grunow in Schmidt et al.) Hustedt, 1964 accepted as
Navicula lyra var. abnormis Grunow in Schmidt et al., 1874 (new combination reference)
Navicula robertsiana f. bullata (Cleve) Hustedt, 1964 (new combination reference)
Navicula robertsiana f. fornicata (Schmidt in Schmidt et al.) Hustedt, 1964 accepted as
Navicula lyra var. fornicata Schmidt in Schmidt et al., 1874 (new combination reference)
Navicula robertsiana f. typica Hustedt, 1964 (original description)
Navicula rudiformis Hustedt, 1964 (original description)
Navicula sandriana f. laevis (Cleve) Hustedt, 1964 accepted as
Navicula sandriana var. laevis Cleve, 1895 (new combination reference)
Navicula schaeferi Hustedt, 1964 (original description)
Navicula semiapproximata f. constricta Hustedt, 1964 (original description)
Navicula semiapproximata f. semiapproximata Hustedt, 1964 (original description)
Navicula signatula Hustedt, 1964 (original description)
Navicula sparsistriata Hustedt, 1964 (original description)
Navicula spectabilis f. angelorum (Cleve) Hustedt, 1964 (new combination reference)
Navicula spectabilis f. bullata (Cleve) Hustedt, 1964 accepted as
Navicula spectabilis f. bullata Cleve, 1895 (new combination reference)
Navicula spectabilis f. controversa (Schmidt in Schmidt et al.) Hustedt, 1964 accepted as
Navicula hennedyi var. controversa Schmidt in Schmidt et al., 1874 (new combination reference)
Navicula spectabilis f. emarginata (Cleve) Hustedt, 1964 accepted as
Navicula spectabilis var. emarginata Cleve, 1895 (new combination reference)
Navicula spectabilis f. genuina Hustedt, 1964 (original description)
Navicula spectabilis f. inaurata (Hendey) Hustedt, 1964 accepted as
Navicula inaurata Hendey, 1958 (new combination reference)
Navicula spectabilis f. madagascarensis (Cleve) Hustedt, 1964 accepted as
Navicula spectabilis var. madagascarensis Cleve, 1895 (new combination reference)
Navicula spectabilis var. bacillifera Hustedt, 1964 (original description)
Navicula spectabilis var. splendida Hustedt, 1964 (original description)
Navicula subforcipata Hustedt, 1964 (original description)
Navicula subirroratoides Hustedt, 1964 (original description)
Navicula variolata f. intermedia Hustedt, 1964 (original description)
Navicula veterana Hustedt, 1987 (original description)