Actinoptychus senarius var. denarius (Ehrenberg) O'Meara, 1875 accepted as Actinoptychus denarius Ehrenberg, 1843 (new combination reference)
Actinoptychus senarius var. duodenarius (Ehrenberg) O'Meara, 1875 accepted as Actinocyclus duodenarius (Ehrenberg) W. Smith, 1856 (new combination reference)
Actinoptychus senarius var. sedenarius (Ehrenberg) O'Meara, 1875 accepted as Actinocyclus sedenarius Ehrenberg, 1839 (new combination reference)
Actinoptychus senarius var. vicenarius (Ehrenberg) O'Meara, 1875 accepted as Actinoptychus vicenarius Ehrenberg, 1843 (new combination reference)
Brebissonia boeckii (Ehrenberg) E.O'Meara, 1875 accepted as Cocconema boeckii Ehrenberg, 1838 (new combination reference)
Coscinodiscus centralis sensu O'Meara, 1876 (original description)
Coscinodiscus ehrenbergii O'Meara, 1875 (original description)
Coscinodiscus gregorii O'Meara, 1876 (original description)
Coscinodiscus smithii O'Meara, 1876 (original description)
Denticula mutabilis (W.Smith) O'Meara, 1875 accepted as Odontidium mutabile var. mutabile W. Smith, 1856 (new combination reference)
Fragilaria maxima O'Meara, 1876  (original description)
Lysigonium westii (W. Smith) O'Meara, 1876 accepted as Melosira westii f. westii W. Smith, 1856 (new combination reference)
Lysigonium wrightii (O'Meara) O'Meara, 1876 accepted as Melosira wrightii O'Meara, 1869 (new combination reference)
Mastogloia closeii O'Meara, 1876 (original description)
Mastogloia convergens O'Meara, 1876 (original description)
Mastogloia costata O'Meara, 1875 (original description)
Mastogloia smithii var. capitata O'Meara, 1875 (original description)
Mastogloia smithii var. capitata O'Meara, 1875 (original description)
Navicula acuta (W.Smith) O'Meara, 1875 accepted as Stauroneis acuta f. acuta W. Smith, 1853 (new combination reference)
Navicula arraniensis O'Meara, 1875 (original description)
Navicula barkeriana O'Meara, 1875 (original description)
Navicula bicapitata O'Meara, 1875 (original description)
Navicula bicapitata var. constricta (Grunow) O'Meara, 1876 accepted as Navicula mesolepta var. constricta Grunow, 1860 (new combination reference)
Navicula bicapitata var. crucifera O'Meara, 1875 (original description)
Navicula caerulea O'Meara, 1875 (original description)
Navicula cleviana O'Meara, 1876 (original description)
Navicula cluthensis var. producta O'Meara, 1876 (original description)
Navicula coerulea O'Meara, 1876 (original description)
Navicula collisiana O'Meara, 1876 (original description)
Navicula crabro var. denticulata (O'Meara) O'Meara (original description)
Navicula crabro var. intermedia O'Meara, 1875 (original description)
Navicula crucifera O'Meara, 1876 (original description)
Navicula cuneata O'Meara, 1876 (original description)
Navicula cuspis O'Meara, 1876 (original description)
Navicula davidsoniana O'Meara, 1876 (original description)
Navicula decipiens O'Meara, 1876 (original description)
Navicula deliginensis O'Meara, 1876 (original description)
Navicula divergens var. elliptica O'Meara, 1875 (original description)
Navicula divergens var. longa O'Meara, 1875 (original description)
Navicula donkinia O'Meara, 1875 (original description)
Navicula elliptica var. costata O'Meara, 1875 (original description)
Navicula elliptica var. davidsonii O'Meara, 1875 (original description)
Navicula elliptica var. ovalis (W.Smith) O'Meara, 1875 accepted as Navicula ovalis W.Smith, 1853 (new combination reference)
Navicula elliptica var. parva O'Meara, 1875 (original description)
Navicula elongata Grunow, 1875 (original description)
Navicula expleta O'Meara, 1876 (original description)
Navicula franciscae O'Meara, 1876 (original description)
Navicula galvagensis O'Meara, 1876 (original description)
Navicula gibba var. boeckii (Rabenhorst) O'Meara, 1875 (new combination reference)
Navicula gibba var. parva (Grunow) O'Meara, 1875 accepted as Navicula stauroptera var. parva Grunow, 1860 (new combination reference)
Navicula globifera O'Meara, 1876 (original description)
Navicula gregorii O'Meara, 1875 (original description)
Navicula grundleriana O'Meara, 1876 (original description)
Navicula grunowii O'Meara, 1876 (original description)
Navicula hibernica O'Meara, 1875 (original description)
Navicula humerosa var. fuscata (Schumann) O'Meara, 1876 accepted as Navicula fuscata Schumann, 1867 (new combination reference)
Navicula humerosa var. quadrata (Gregory) O'Meara, 1875 accepted as Navicula quadrata Gregory, 1856 (new combination reference)
Navicula icostauron var. icostauron (Ehrenberg) O'Meara, 1876 accepted as Stauroptera isostauron Ehrenberg, 1843 (new combination reference)
Navicula incisa O'Meara, 1876 (original description)
Navicula iridis var. affinis (Ehrenberg) Van Heurck accepted as Navicula affinis f. affinis Ehrenberg, 1843 (new combination reference)
Navicula iridis var. amphigomphus (Ehrenberg) van Heurck, 1880 accepted as Navicula amphigomphus var. amphigomphus Ehrenberg, 1843 (new combination reference)
Navicula johnsonii var. johnsonii (W. Smith) O'Meara, 1876 accepted as Pinnularia johnsonii var. johnsonii W. Smith, 1853 (new combination reference)
Navicula lagerstedtii O'Meara, 1876 (original description)
Navicula lucida O'Meara, 1876 (original description)
Navicula lyra var. constricta O'Meara, 1876 (original description)
Navicula lyra var. costata O'Meara, 1875 (original description)
Navicula lyra var. elliptica (W.Smith) O'Meara, 1875 accepted as Navicula elliptica W.Smith, 1853 (new combination reference)
Navicula lyra var. forcipata (Greville) O'Meara, 1875 accepted as Navicula forcipata f. forcipata Greville, 1859 (new combination reference)
Navicula lyra var. grunovii O'Meara, 1875 (original description)
Navicula lyra var. minor O'Meara, 1875 (original description)
Navicula lyra var. seductilis (A.Schmidt) O'Meara, 1875 accepted as Navicula seductilis A.Schmidt, 1874 (new combination reference)
Navicula marginata (O'Meara) O'Meara, 1876 accepted as Pinnularia marginata O'Meara, 1869 (new combination reference)
Navicula maxima var. lata O'Meara, 1875 (original description)
Navicula maxima var. linearis (Grunow) O'Meara, 1875 accepted as Navicula linearis Grunow, 1860 (new combination reference)
Navicula menapiensis O'Meara, 1876 (original description)
Navicula microstauron var. microstauron (Ehrenberg) O'Meara, 1876 accepted as Stauroptera microstauron Ehrenberg, 1843 (new combination reference)
Navicula moreii O'Meara, 1876 (original description)
Navicula nebulosa var. suborbicularis O'Meara, 1875 (original description)
Navicula nodosa var. staurophora O'Meara, 1875 (original description)
Navicula papillifera O'Meara, 1876 (original description)
Navicula pfitzeriana O'Meara, 1876 (original description)
Navicula plumbicolor O'Meara, 1876 (original description)
Navicula pusilla var. lanceolata (Grunow) O'Meara, 1875 accepted as Navicula tumida var. lanceolata Grunow, 1860 (new combination reference)
Navicula pygmaea var. cuneata O'Meara, 1875 (original description)
Navicula richardsoniana O'Meara, 1876 (original description)
Navicula rostellifera O'Meara, 1876 (original description)
Navicula rupestris O'Meara, 1876 (original description)
Navicula scalaris (Ehrenberg) O'Meara, 1875 accepted as Stauroptera scalaris Ehrenberg, 1843 (new combination reference)
Navicula schmidtii O'Meara, 1875 (original description)
Navicula scutellum (O'Meara) O'Meara, 1876 accepted as Pinnularia scutellum O'Meara, 1869 (new combination reference)
Navicula smithii var. rhombica O'Meara, 1875 (original description)
Navicula smithii var. subrotunda O'Meara, 1875 (original description)
Navicula spectabilis var. sub-orbicularis O'Meara (original description)
Navicula stokesiana O'Meara, 1876 (original description)
Navicula suborbicularis var. forficula (O'Meara) O'Meara, 1876 accepted as Pinnularia forficula O'Meara, 1867 (new combination reference)
Navicula suborbicularis var. parva O'Meara, 1875 (original description)
Navicula tabellaria var. acrosphaeria (Brébisson) O'Meara, 1875 accepted as Navicula acrosphaeria A.Schmidt, 1875 (new combination reference)
Navicula tenuirostris O'Meara, 1876 (original description)
Navicula termes var. termes (Ehrenberg) O'Meara, 1876 accepted as Pinnularia termes var. termes Ehrenberg, 1843 (new combination reference)
Navicula translucida O'Meara, 1876 (original description)