Amphiprora didyma W.Smith, 1853 (original description)
Amphiprora paludosa var. paludosa W. Smith, 1853 accepted as Entomoneis paludosa (W.Smith) Reimer, 1975 (original description)
Amphora costata var. costata W. Smith, 1853 (original description)
Amphora membranacea W.Smith, 1853 (original description)
Amphora minutissima W.Smith, 1853 (original description)
Amphora tenera W.Smith, 1853 (original description)
Campylodiscus ralfsii var. ralfsii W. Smith, 1853 (original description)
Cocconeis grevillei W.Smith, 1853 (original description)
Cocconema parvum W.Smith, 1853 (original description)
Cymatopleura elliptica (Brébisson) W.Smith, 1851 (original description)
Cymatopleura solea (Brébisson) W.Smith, 1851 (original description)
Eunotia gracilis W.Smith, 1853 (original description)
Eupodiscus argus (Ehrenberg) W.Smith, 1853 accepted as Tripodiscus argus Ehrenberg, 1839 (new combination reference)
Eupodiscus crassus W.Smith, 1853 (original description)
Eupodiscus fulvus W. Smith, 1853 (original description)
Eupodiscus sculptus W.Smith, 1853 (original description)
Gomphonema marinum (Kützing) W.Smith, 1853 accepted as Gomphonema curvatum var. marinum Kützing, 1844 (new combination reference)
Navicula crassinervia var. crassinervia Brébisson in W. Smith, 1853 (original description)
Navicula elegans f. elegans W. Smith, 1853 (original description)
Navicula liber f. liber W. Smith, 1853 (original description)
Navicula pusilla f. pusilla W. Smith, 1853 (original description)
Navicula westii W.Smith, 1853 (original description)
Nitzschia closterium (Ehrenberg) W.Smith, 1853 (new combination reference)
Nitzschia plana f. plana W. Smith, 1853 (original description)
Nitzschia vivax f. vivax W. Smith, 1853 (original description)
Pinnularia directa var. directa W. Smith, 1853 (original description)
Pinnularia distans W.Smith, 1853 (original description)
Pleurosigma macrum W.Smith, 1853 (original description)
Pleurosigma tenuissimum var. tenuissimum W. Smith, 1853 (original description)
Stauroneis crucicula W.Smith, 1853 (original description)
Surirella brightwellii W.Smith, 1853 (original description)
Surirella linearis W.Smith, 1853 (original description)
Synedra biceps W.Smith, 1853 (original description)
Synedra delicatissima f. delicatissima W. Smith, 1853 (original description)
Synedra longissima W.Smith, 1853 accepted as Ulnaria longissima (W.Smith) Van de Vijver & D.M.Williams, 2022 (original description)
Synedra longissima var. longissima W. Smith, 1853 (original description)
Synedra lunaris W. Smith, 1853 (original description)
Synedra radians W. Smith, 1853 (original description)
Synedra salina W. Smith, 1853 accepted as Ulnaria salina (W. Sm.) Gogorev, 2018 (original description)
Tryblionella W. Smith, 1853 (original description)
Tryblionella acuminata W.Smith, 1853 (original description)
Tryblionella angustata var. angustata W. Smith, 1853 (original description)
Tryblionella gracilis W.Smith, 1853 (original description)
Ulnaria longissima (W.Smith) Van de Vijver & D.M.Williams, 2022 (original description)