Actinoptychus calicinus Schmidt in Schmidt et al., 1888 (original description)
Actinoptychus fuscus Grove & Sturt in Schmidt et al., 1888 (original description)
Actinoptychus laevigatus f. parva Schmidt in Schmidt et al., 1888 (original description)
Actinoptychus maculatus E.Grove & G.Sturt (new combination reference)
Actinoptychus moelleri var. moelleri Grunow in Schmidt et al., 1888 (original description)
Actinoptychus omaruensis Grunow in Schmidt et al., 1888 (original description)
Actinoptychus splendens var. fusca (Grove & Sturt in Schmidt et al.) Grove & Sturt in Schmidt et al., 1888 accepted as Actinoptychus fuscus Grove & Sturt in Schmidt et al., 1888 (new combination reference)
Actinoptychus subangulatus Schmidt in Schmidt et al., 1888 (original description)
Actinoptychus undulatus ‘Ehrenberg' A. Schmidt, 1888 (taxonomy source)
Aulacodiscus marginatus Ralfs ex Schmidt in Schmidt et al., 1888 (original description)
Aulacodiscus patulus Grunow in Schmidt et al., 1888 (original description)
Isthmia capensis Grunow in Schmidt et al., 1888 (original description)
Navicula barbitos A.Schmidt, 1888 (original description)
Navicula copiosa A.Schmidt, 1888 (original description)
Navicula durandii var. intermedia Schmidt in Schmidt et al., 1888 (original description)
Navicula durandii var. rhomboidea (Castracane) Schmidt in Schmidt et al., 1888 accepted as Navicula bullata var. rhomboidea Castracane, 1886 (new combination reference)
Navicula oamaruensis Grunow in Schmidt et al., 1888 (original description)
Navicula praetexta var. abundans A.Schmidt, 1888 (original description)
Podosira baldjikiana Grunow in Schmidt et al., 1888 (original description)
Stephanopyxis appendiculata var. intermedia (Grunow) Grunow accepted as Stephanopyxis turris f. intermedia Grunow, 1884 (new combination reference)
Stephanopyxis appendiculata var. parvispina (Grunow) Grunow accepted as Stephanopyxis turris var. parvispina Grunow, 1884 (new combination reference)
Stephanopyxis appendiculata var. paucispina (Grunow) Grunow in Schmidt, 1888 accepted as Stephanopyxis turris f. paucispina Grunow, 1884 (new combination reference)
Stephanopyxis appendiculata var. tenuispina Schmidt in Schmidt et al., 1888 (original description)
Stephanopyxis crassispina (Grunow) Grunow (new combination reference)
Stephanopyxis ferox f. minuta Schmidt in Schmidt et al., 1888 (original description)
Stephanopyxis grunowii f. grunowii Grove & Sturt in Schmidt et al., 1888 (original description)
Stephanopyxis palmeriana f. javanica Grunow in Schmidt et al., 1888 (original description)
Stephanopyxis turris var. paucispina (Grunow) Schmidt in Schmidt et al., 1888 (new combination reference)
Stephanopyxis turris var. subconstricta Grunow in Schmidt et al., 1888 (original description)
Stictodiscus nitidus (Grove & Sturt) Schmidt, 1888 † accepted as Stictodiscus californicus var. nitida Grove & Sturt, 1887 (new combination reference)
Stictodiscus novaezeelandiae Grunow in Schmidt et al., 1888 (original description)