Bacterosira H.H. Gran, 1900 (original description)
Bacterosira fragilis (Gran) Gran, 1900 accepted as
Lauderia fragilis Gran, 1897 (new combination reference)
Chaetoceros tortissimus Gran, 1900 (original description)
Coscinosira H.H. Gran, 1900 (original description)
Coscinosira polychorda (Gran) Gran, 1900 accepted as
Coscinodiscus polychordus Gran, 1897 (new combination reference)
Detonula confervacea (Cleve) Gran, 1896 accepted as
Lauderia confervacea Cleve, 1896 (new combination reference)
Detonula cystifera Gran, 1900 (original description)
Detonula delicatula (H.Peragallo) Gran, 1900 accepted as
Lauderia delicatula H.Peragallo, 1888 (new combination reference)
Detonula moseleyana (Castracane) H.H.Gran, 1900 accepted as
Lauderia moseleyana Castracane, 1886 (new combination reference)
Detonula pumila (Castracane) Gran, 1900 accepted as
Lauderia pumila Castracane, 1886 (new combination reference)
Lauderia annulata f. elongata (Castracane) Gran, 1900 accepted as
Lauderia elongata Castracane, 1886 (new combination reference)
Lauderia borealis Gran, 1900 (original description)
Lauderia glacialis (Grunow) Gran, 1900 accepted as
Podosira hormoides var. glacialis Grunow, 1884 (new combination reference)
Rhizosolenia alata f. curvirostris Gran, 1900 (original description)
Thalassiosira subtilis var. subtilis (Ostenfeld) Gran, 1900 accepted as
Podosira subtilis Ostenfeld, 1899 (new combination reference)