• Valve is organized around a line (bilateral symmetry)
  • Valves symmetrical to both apical and transapical axis
  • Raphid system well developed, raphe on each valve makes cells highly motile
  • This group has the greatest diversity among the freshwater diatoms

Note: The specimen(s) pictured to the right are not from Antarctica, excepting Naviculoid example.

Taxon Name Basionym synonyms ID
Chamaepinnularia cymatopleura Navicula cymatopleura Pinnularia cymatopleura 73
Craticula molestiformis Navicula molestiformis 13
Diadesmis contenta Navicula contenta 21
Diadesmis contenta var. parallela Navicula contenta var. parallela 17
Diadesmis perpusilla Navicula perpusilla 18
Fallacia naumannii Navicula naumannii Navicula airdevronsixii 25
Fistulifera pelliculosa Synedra minutissima var. pelliculosa Navicula pelliculosa 27
Luticola austroatlantica Luticola austroatlantica 47
Luticola cohnii var. #1 36
Luticola dolia Luticola dolia 42
Luticola gaussii Navicula muticopsis var. gaussii 37
Luticola laeta Luticola laeta 38
Luticola murrayi Navicula murrayi 39
Luticola mutica Navicula mutica 40
Luticola muticopsis Navicula muticopsis 41
Luticola muticopsis fo. capitata Navicula muticopsis fo. capitata 43
Luticola muticopsis fo. evoluta Navicula muticopsis fo. evoluta 44
Luticola muticopsis fo. reducta Navicula muticopsis fo. reducta 45
Luticola sp. #2 89
Luticola sp. #3 93
Mayamaea atomus Amphora atomus 50
Mayamaea atomus fo. permitis Navicula permitis 51
Mayamaea atomus var. #1 Navicula atomus 49
Muelleria cryoconicola Muelleria cryoconicola 94
Muelleria meridionalis Muelleria meridionalis 54
Muelleria peraustralis Navicula peraustralis 55
Muelleria supra Muelleria supra 56
Navicula cincta Pinnularia cincta 58
Navicula gregaria Navicula gregaria 63
Navicula lineola var. perlepida Navicula perlepida 92
Navicula shackletoni Navicula shakletoni 61
Pinnularia borealis 72
Pinnularia cymatopleura var. #3 76
Pinnularia deltaica Navicula deltaica 75
Pinnularia quaternaria Navicula quaternaria 74
Stauroneis latistauros Stauroneis latistauros 78
Stauronella constricta Stauroneis constricta Tropodoneis laevissima 80