Achnanthes hyperborea (Grunow) Grunow, 1884 (original description)
Amphiprora hyperborea f. hyperborea (Grunow in Cleve & Grunow) Grunow, 1884 accepted as Amphiprora paludosa f. hyperborea Grunow in Cleve & Grunow, 1880 (new combination reference)
Amphiprora hyperborea f. minuta Grunow, 1884 (original description)
Amphiprora kariana var. subtilis Grunow, 1884 (original description)
Amphitropis kariana var. subtilis Grunow, 1884 (original description)
Amphora coffeaeformis var. perpusilla (Grunow) Cleve, 1895 accepted as Amphora perpusilla Grunow, 1884 accepted as Amphora globulosa var. perpusilla Grunow, 1880 (original description)
Amphora hyperborea Grunow, 1884 (original description)
Amphora perpusilla Grunow, 1884 accepted as Amphora globulosa var. perpusilla Grunow, 1880 (original description)
Anaulus weyprechtii Grunow, 1884 (original description)
Aulacodiscus crux var. glacialis Grunow, 1884 (original description)
Aulacodiscus crux var. peruana Grunow, 1884 (original description)
Aulacodiscus imperfectus Grunow, 1884 (original description)
Biddulphia flos (Ehrenberg) Grunow (original description)
Biddulphia flos var. hebetata Grunow, 1884 (original description)
Chaetoceros clavigerum Grunow, 1884 (original description)
Cocconeis placentula f. euglypta (Ehrenberg) Hustedt, 1957 accepted as Cocconeis euglypta Ehrenberg, 1854 (new combination reference)
Cocconeis scutellum var. dubia Grunow, 1884 (original description)
Cocconeis septentrionalis Grunow, 1884 (original description)
Coscinodiscus anastomosans Grunow, 1884 (original description)
Coscinodiscus annulatus Grunow, 1884 (original description)
Coscinodiscus antarcticus var. antarcticus Grunow, 1884 (original description)
Coscinodiscus antiquus f. antiquus Grunow, 1884 (original description)
Coscinodiscus apiculatus var. ambigua Grunow, 1884 (original description)
Coscinodiscus apiculatus var. maxima Grunow, 1884 (original description)
Coscinodiscus asperulus Grunow, 1884 (original description)
Coscinodiscus asteromphalus var. brightwellioides Grunow, 1884 (original description)
Coscinodiscus asteromphalus var. centralis Grunow, 1884 accepted as Coscinodiscus centralis f. centralis Ehrenberg, 1838 (new combination reference)
Coscinodiscus asteromphalus var. eximia Grunow, 1884 (original description)
Coscinodiscus asteromphalus var. genuina Grunow, 1884 (original description)
Coscinodiscus asteromphalus var. hybrida Grunow, 1884 (original description)
Coscinodiscus asteromphalus var. macrantha Grunow, 1884 (original description)
Coscinodiscus asteromphalus var. omphalanthus (Ehrenberg) Grunow, 1884 accepted as Coscinodiscus omphalanthus var. omphalanthus Ehrenberg, 1844 (1845) (new combination reference)
Coscinodiscus asteromphalus var. pulchra Grunow, 1884 (original description)
Coscinodiscus asteromphalus var. spinuligera Grunow, 1884 (original description)
Coscinodiscus australiensis Grunow, 1884 (original description)
Coscinodiscus bioculatus var. bioculatus Grunow, 1884 (original description)
Coscinodiscus bioculatus var. exigua Grunow, 1884 (original description)
Coscinodiscus boliviensis var. boliviensis Grunow, 1884 (original description)
Coscinodiscus boliviensis var. spinulosa Grunow, 1884 (original description)
Coscinodiscus capensis Grunow, 1884 (original description)
Coscinodiscus commutatus Grunow, 1884 accepted as Coscinodiscopsis commutata (Grunow) E.A.Sar & I.Sunesen, 2008 (original description)
Coscinodiscus concinnus var. arafurensis Grunow, 1884 (original description)
Coscinodiscus concinnus var. kerguelensis Grunow, 1884 (original description)
Coscinodiscus concinnus var. triangularis Grunow, 1884 (original description)
Coscinodiscus convexus var. bengalensis Grunow, 1884 (original description)
Coscinodiscus convexus var. diminuta Grunow, 1884 (original description)
Coscinodiscus crassus var. algida Grunow, 1884 (original description)
Coscinodiscus crassus var. gelida Grunow, 1884 (original description)
Coscinodiscus crassus var. morsiana Grunow, 1884 (original description)
Coscinodiscus crenulatus var. crenulalus Grunow, 1884 (original description)
Coscinodiscus curvatulus var. divisus Grunow, 1884 (original description)
Coscinodiscus curvatulus var. genuina Grunow, 1884 (original description)
Coscinodiscus curvatulus var. inermis Grunow, 1884 (original description)
Coscinodiscus curvatulus var. minor (Ehrenberg) Grunow, 1884 accepted as Coscinodiscus minor Ehrenberg, 1840 (new combination reference)
Coscinodiscus curvatulus var. subocellata Grunow, 1884 (original description)
Coscinodiscus decrescens var. irregularis Grunow, 1884 (original description)
Coscinodiscus decrescens var. polaris Grunow, 1884 (original description)
Coscinodiscus decrescens var. repleta Grunow, 1884 (original description)
Coscinodiscus decrescens var. valida Grunow, 1884 (original description)
Coscinodiscus decrescens var. venusta Grunow, 1884 (original description)
Coscinodiscus diversus var. diversus Grunow, 1884 (original description)
Coscinodiscus divisus Grunow, 1878 (original description)
Coscinodiscus excavatus var. biocellata Grunow, 1884 (original description)
Coscinodiscus excavatus var. genuina Grunow, 1884 (original description)
Coscinodiscus excavatus var. quadriocellata Grunow, 1884 (original description)
Coscinodiscus excavatus var. semilunaris Grunow, 1884 (original description)
Coscinodiscus excavatus var. venusta Grunow, 1884 (original description)
Coscinodiscus excentricus var. antiquus Grunow, 1884 (original description)
Coscinodiscus excentricus var. perpusilla Grunow, 1884 (original description)
Coscinodiscus excentricus var. punctifera Grunow, 1884 (original description)
Coscinodiscus excentricus var. sublineatus Grunow, 1884 (original description)
Coscinodiscus fimbriato-limbatus Grunow, 1884 (original description)
Coscinodiscus fimbriatus var. californica Grunow, 1884 (original description)
Coscinodiscus gigas var. diorama (Schmidt in Schmidt et al.) Grunow, 1884 accepted as Coscinodiscus diorama var. diorama Schmidt in Schmidt et al., 1878 (new combination reference)
Coscinodiscus gigas var. duplicata Grunow, 1884 (original description)
Coscinodiscus gigas var. montereyi Grunow, 1884 (original description)
Coscinodiscus glacialis Grunow, 1884 (original description)
Coscinodiscus guineensis Grunow, 1884 (original description)
Coscinodiscus heteroporus var. moronensis Grunow, 1884 (original description)
Coscinodiscus hyperboreus Grunow accepted as Coscinodiscus lacustris var. hyperborea (Grunow) Rattray, 1890 (new combination reference)
Coscinodiscus janischii var. arafurensis Grunow, 1884 (original description)
Coscinodiscus janischii var. monicae Grunow, 1884 (original description)
Coscinodiscus josefinus Grunow, 1884 (original description)
Coscinodiscus kryophilus Grunow, 1884 (original description)
Coscinodiscus kuetzingii var. glacialis Grunow, 1884 (original description)
Coscinodiscus macroporus Grunow, 1884 (original description)
Coscinodiscus marginatus var. submarginatus Grunow, 1884 (original description)
Coscinodiscus oculusiridis f. subspinosa Grunow, 1884 (original description)
Coscinodiscus oculusiridis var. genuina Grunow, 1884 (original description)
Coscinodiscus oculusiridis var. morsiana Grunow, 1884 (original description)
Coscinodiscus oculusiridis var. pacifica Grunow, 1884 (original description)
Coscinodiscus oculusiridis var. tenuistriata Grunow, 1884 (original description)
Coscinodiscus odontodiscus var. odontodiscus Grunow, 1884 (original description)
Coscinodiscus odontophorus Grunow, 1884 accepted as Coscinodiscus subtilis var. odontophorus Grunow, 1884 (original description)
Coscinodiscus payeri var. payeri Grunow, 1884 (original description)
Coscinodiscus payeri var. subrepleta Grunow, 1884 (original description)
Coscinodiscus perforatus var. cellulosa Grunow, 1884 (original description)
Coscinodiscus plicatulus Grunow, 1884 (original description)
Coscinodiscus polyacanthus var. davisiana Grunow, 1884 (original description)
Coscinodiscus polyacanthus var. intermedia Grunow, 1884 (original description)