Achnanthes aperta J.R.Carter, 1981 accepted as Skabitschewskia aperta (Carter) Kulikovskiy & Lange-Bertalot, 2015 (original description)
Achnanthes didyma f. gibbosa J.R.Carter, 1981 (original description)
Achnanthes exiloides Carter in Carter & Bailey-Watts, 1981 (original description)
Achnanthes microcephala f. scotica J.R.Carter, 1981 accepted as Achnanthidium caledonicum (Lange-Bertalot) Lange-Bertalot, 1999 (original description)
Achnanthes sacculus Carter in Carter & Bailey-Watts, 1981 accepted as Psammothidium sacculum (J.R.Carter) L.Bukhtiyarova, 1996 (original description)
Berkella spicula (Amosse) Carter, 1981 accepted as Frustulia spicula Amossé, 1932 (new combination reference)
Caloneis lauta Carter & Bailey-Watts, 1981 (original description)
Cocconeis confusa J.R.Carter, 1981 (original description)
Cocconeis diversa J.R.Carter, 1981 (original description)
Cyclotella delicatissima J.R.Carter, J.R.Carter & Bailey-Watts, 1981 (original description)
Cymbella citrus Carter & Bailey-Watts, 1981 (original description)
Gomphoneis olivaceoides (Hustedt) J.R.Carter, 1981 (new combination reference)
Gyrosigma algoris J.R.Carter, 1981 (original description)
Navicula caenosus J.R.Carter & Bailey-Watts, 1981 (original description)
Navicula concentrica Carter & Bailey-Watts, 1981 (original description)
Navicula glomus J.R.Carter, 1981 (original description)
Navicula lapila J.R.Carter, 1981 (original description)
Navicula menda J.R.Carter & Bailey-Watts, 1981 (original description)
Navicula orbis J.R.Carter, 1981 (original description)
Navicula pseudoclamans J.R.Carter, 1981 (original description)
Navicula pseudomenisculus J.R.Carter, 1981 (original description)
Navicula resecta J.R.Carter, 1981 (original description)
Navicula scirpus J.R.Carter, 1981 (original description)
Neidium juba J.R.Carter, 1981 (original description)
Neidium testa J.R.Carter, 1981 (original description)