Amphipleura sigmoidea W.Smith, 1853 (original description)
Amphiprora constricta sensu W. Smith, 1853 (original description)
Amphiprora didyma W.Smith, 1853 (original description)
Amphiprora paludosa var. paludosa W. Smith, 1853 accepted as Entomoneis paludosa (W.Smith) Reimer, 1975 (original description)
Amphiprora vitrea var. vitrea W. Smith, 1853 (original description)
Amphora affinis sensu W. Smith, 1853 (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 ovalis sensu W. Smith, 1853 (original description)
Amphora salina var. salina W. Smith, 1853 (original description)
Amphora tenera W.Smith, 1853 (original description)
Campylodiscus hodgsonii var. hodgsonii W. Smith, 1853 (original description)
Campylodiscus ralfsii var. ralfsii W. Smith, 1853 (original description)
Cocconeis diaphana W.Smith, 1853 (original description)
Cocconeis diaphana var. diaphana W. Smith, 1853 (original description)
Cocconeis grevillei W.Smith, 1853 (original description)
Cocconeis scutellum var. beta W. Smith, 1853 (original description)
Cocconeis thwaitesii var. thwaitesii W. Smith, 1853 (original description)
Cocconema parvum W.Smith, 1853 (original description)
Coscinodiscus minor W. Smith, 1853 (original description)
Cyclotella antiqua var. antiqua W. Smith, 1853 (original description)
Cyclotella kuetzingiana W. Smith, 1853 (original description)
Cymatopleura apiculata W.Smith, 1853 (original description)
Cymatopleura elliptica (Brébisson) W.Smith, 1851 (original description)
Cymatopleura parallela W. Smith, 1853 (original description)
Cymatopleura solea (Brébisson) W.Smith, 1851 (original description)
Cymbella cuspidata W.Smith, 1853 (original description)
Cymbella helvetica W. Smith, 1853 (original description)
Cymbella maculata f. maculata W. Smith, 1853 (original description)
Cymbella scotica Schmidt in Schmidt et al., 1875 (original description)
Doryphora boeckii (Ehrenberg) W.Smith, 1853 accepted as Cocconema boeckii Ehrenberg, 1838 (new combination reference)
Epithemia alpestris W.Smith, 1853 (original description)
Epithemia argus W. Smith, 1853 (original description)
Epithemia constricta W.Smith, 1853 (original description)
Epithemia constricta Brebisson in litt. cum specim., 1853 (original description)
Epithemia granulata W. Smith, 1853 (original description)
Epithemia longicornis (Ehrenberg) W.Smith, 1853 accepted as Eunotia longicornis Ehrenberg, 1849 (new combination reference)
Epithemia ocellata W. Smith, 1853 (original description)
Epithemia proboscidea W.Smith, 1853 (original description)
Epithemia rupestris W.Smith, 1853 (original description)
Eunotia arcus W. Smith, 1853 (original description)
Eunotia diodon sensu W. Smith, 1853 (original description)
Eunotia gracilis W.Smith, 1853 (original description)
Eunotia monodon W. Smith, 1853 (original description)
Eunotia tridon sensu 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 radiatus W. Smith, 1853 (original description)
Eupodiscus sculptus W.Smith, 1853 (original description)
Gomphonema acuminatum f. coronatum (Ehrenberg; Kutzing) W. Smith, 1853 (new combination reference)
Gomphonema acuminatum var. gamma W. Smith, 1853 (original description)
Gomphonema curvatum var. beta W. Smith, 1853 (original description)
Gomphonema dichotomum var. beta W. Smith, 1853 (original description)
Gomphonema marinum (Kützing) W.Smith, 1853 accepted as Gomphonema curvatum var. marinum Kützing, 1844 (new combination reference)
Gomphonema tenellum sensu W. Smith, 1853 (original description)
Licmophora splendida Greville ex W.Smith, 1853 (original description)
Navicula affinis sensu W. Smith, 1853 (original description)
Navicula amphisbaena sensu W. Smith, 1853 (original description)
Navicula amphisbaena var. beta W. Smith, 1853 (original description)
Navicula angustata var. angustata W. Smith, 1853 (original description)
Navicula convexa W.Smith, 1853 (original description)
Navicula crassinervia var. crassinervia Brébisson in W. Smith, 1853 (original description)
Navicula cryptocephala sensu W. Smith, 1853 (original description)
Navicula didyma var. sporangial W. Smith, 1853 (original description)
Navicula elegans f. elegans W. Smith, 1853 (original description)
Navicula elliptica W.Smith, 1853 (original description)
Navicula firma var. beta W. Smith, 1853 (original description)
Navicula jennerii W.Smith, 1853 (original description)
Navicula lanceolata sensu W. Smith, 1853 (original description)
Navicula liber f. liber W. Smith, 1853 (original description)
Navicula major sensu W. Smith, 1853 (original description)
Navicula minutula W.Smith, 1853 (original description)
Navicula obtusa W.Smith, 1853 (original description)
Navicula ovalis W.Smith, 1853 (original description)
Navicula ovalis var. ovalis W. Smith, 1853 (original description)
Navicula palpebralis f. palpebralis Brebisson in litt., W. Smith, 1853 (original description)
Navicula patula W.Smith, 1853 (original description)
Navicula producta var. producta W. Smith, 1853 (original description)
Navicula punctulata W.Smith, 1853 (original description)
Navicula punctulata var. punctulata W. Smith, 1853 (original description)
Navicula pusilla f. pusilla W. Smith, 1853 (original description)
Navicula tumens W.Smith, 1853 (original description)
Navicula tumida var. tumida W. Smith, 1853 (original description)
Navicula westii W.Smith, 1853 (original description)
Nitzschia acicularis f. acicularis (Kützing) W. Smith, 1853 accepted as Synedra acicularis Kützing, 1844 (new combination reference)
Nitzschia amphioxys f. amphioxys (Ehrenberg) W. Smith, 1853 accepted as Eunotia amphioxys Ehrenberg, 1843 (new combination reference)
Nitzschia angularis f. angularis W. Smith, 1853 (original description)
Nitzschia bilobata f. bilobata W. Smith, 1853 (original description)
Nitzschia birostrata W.Smith, 1853 (original description)
Nitzschia brebissonii var. brebissoni W. Smith, 1853 (original description)
Nitzschia closterium (Ehrenberg) W.Smith, 1853 (new combination reference)
Nitzschia closterium f. closterium (Ehrenberg) W. Smith, 1853 accepted as Ceratoneis closterium Ehrenberg, 1839 (new combination reference)
Nitzschia dubia f. dubia W. Smith, 1853 (original description)
Nitzschia dubia var. beta W. Smith, 1853 (original description)
Nitzschia lanceolata f. lanceolata W. Smith, 1853 (original description)
Nitzschia linearis f. linearis (Agardh) W. Smith, 1853 accepted as Frustulia linearis C.Agardh (new combination reference)
Nitzschia minutissima W.Smith, 1853 (original description)
Nitzschia obtusa f. obtusa W. Smith, 1853 (original description)