- 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 |
|---|---|---|---|
| Adlafia bryophila | Navicula bryophila, Navicula maillardii | 110 | |
| Adlafia bryophiloides | Navicula bryophiloides | 272 | |
| Adlafia frenotii | 273 | ||
| Adlafia linearis | Navicula bryophiloides var. linearis | 274 | |
| Adlafia minuscula | Navicula minuscula | 111 | |
| Caloneis aff. silicula var. minuta | Caloneis ventricosa var. minuta | 117 | |
| Caloneis cf. bacillum | 115 | ||
| Caloneis delphineae | 275 | ||
| Caloneis marnieri | 116 | ||
| Cavinula heterostauron | Navicula heterostauron | 276 | |
| Cavinula heterostauron var. rostrata | Navicula heterostauron var. rostrata | Navicula meridionalis | 277 |
| Chamaepinnularia aerophila | 278 | ||
| Chamaepinnularia aliena | Navicula aliena | 279 | |
| Chamaepinnularia australomediacris | Navicula australomediacris | 280 | |
| Chamaepinnularia cymatopleura | Navicula cymatopleura | Pinnularia cymatopleura (p) | 73 |
| Chamaepinnularia cymatopleura var. #3 | 76 | ||
| Chamaepinnularia deltaica | Navicula deltaica | 75 | |
| Chamaepinnularia evanida | Navicula evanida | 119 | |
| Chamaepinnularia gracilistriata | 281 | ||
| Chamaepinnularia quaternaria | Navicula quaternaria | 74 | |
| Chamaepinnularia soehrensis var. muscicola | Navicula soehrensis var. muscicola | 120 | |
| Chamaepinnularia sp.#2 | 121 | ||
| Cosmioneis grossepunctata | Navicula grossepunctata | 123 | |
| Craspedostauros laevissiumus | Tropodoneis laevissima | 80 | |
| Craticula molestiformis | Navicula molestiformis | 13 | |
| Craticula salsuginosa | 282 | ||
| Craticula submolesta | Navicula submolesta | 124 | |
| Craticula vixneglidenda | 125 | ||
| Diadesmis arcuata | Navicula arcuata | 129 | |
| Diadesmis comperei | 130 | ||
| Diadesmis contenta | Navicula contenta | 131 | |
| Diadesmis costei | 132 | ||
| Diadesmis crozetikerguelensis | 133 | ||
| Diadesmis faurei | 283 | ||
| Diadesmis ingeae | 134 | ||
| Diadesmis langebertalotii | 135 | ||
| Diadesmis latestriata | 136 | ||
| Diadesmis subantarctica | 137 | ||
| Diadesmis vidalii | 138 | ||
| Diatomella balfouriana | Diatomella hustedtii | 139 | |
| Diploneis subovalis | 140 | ||
| Eolimna minima | Navicula minima, Navicula minutissima, Navicula tantula | 143 | |
| Fallacia lenzii | Navicula lenzii | 149 | |
| Fistulifera pelliculosa | Synedra minutissima var. pelliculosa | Navicula pelliculosa | 27 |
| Frankophila maillardii | Fragilaria maillardii | 158 | |
| Frustulia cirisiae | 159 | ||
| Frustulia pulchra | 160 | ||
| Frustulia subantarctica | 284 | ||
| Frustulia vulgaris | 161 | ||
| Geissleria paludosa Morphotype II | Navicula ignota var. palustris, Navicula paludosa | 162 | |
| Geissleria subantarctica | 163 | ||
| Geissleria taafiana | 164 | ||
| Hippodonta hungarica | Navicula hungarica, Navicula capitata var. hungarica | 170 | |
| Humidophila arcuata | Navicula arcuata | Diadesmis contenta (p) | 21 |
| Humidophila arcuata var. parallela | Navicula contenta var. parallela | Diadesmis contenta var. parallela (p) | 17 |
| Humidophila australis | Diadesmis australis | 18 | |
| Kobayasiella subantarctica | 288 | ||
| Lecohuia geniculata | Navicula geniculata | 171 | |
| Luticola aff. mutica | Navicula mutica | 172 | |
| Luticola australomutica | Luticola australomutica | 107 | |
| Luticola austroatlantica | Luticola austroatlantica | 47 | |
| Luticola bradyi | L. cohnii var. #1 | 36 | |
| Luticola caubergsii | Luticola caubergsii | 104 | |
| Luticola dolia | Luticola dolia | 42 | |
| Luticola elegans | Navicula murrayi var. elegans | 387 | |
| Luticola gaussii | Navicula muticopsis var. gaussii | 37 | |
| Luticola gigamuticopsis | Luticola gigamuticopsis | 103 | |
| Luticola laeta | Luticola laeta | 38 | |
| Luticola ledeganckii | 289 | ||
| Luticola mcknightiae | Navicula muticopsis fo. evoluta | L. muticopsis fo. evoluta (p) | 44 |
| Luticola murrayi | Navicula murrayi | 39 | |
| Luticola mutica | Navicula mutica | 40 | |
| Luticola muticopsis | Navicula muticopsis | 41 | |
| Luticola muticopsis | Navicula muticopsis | 173 | |
| Luticola nelida | Luticola nelida | 106 | |
| Luticola paramutica var. binodis | 174 | ||
| Luticola permuticopsis | Luticola permuticopsis | 43 | |
| Luticola quadriscrobiculata | Luticola quadriscrobiculata | 105 | |
| Luticola robusta | 290 | ||
| Luticola sp. #2 | 89 | ||
| Luticola sp. #3 | 93 | ||
| Luticola suecorum | 175 | ||
| Mayamaea atomus | Amphora atomus | 50 | |
| Mayamaea atomus fo. permitis | Navicula permitis | 51 | |
| Mayamaea atomus var. #1 | Navicula atomus | 49 | |
| Mayamaea atomus var. atomus | Navicula atomus | 176 | |
| Mayamaea atomus var. permitis | Navicula atomus var. permitis | 177 | |
| Mayamaea fossalis var. fossalis | Navicula fossalis var. fossalis | 178 | |
| Microcostatus naumannii | Navicula naumannii | Navicula airdevronsixii, Fallacia naumannii | 25 |
| Muelleria aequistriata | Muelleria aequistriata | 95 | |
| Muelleria austroatlantica | Muelleria austroatlantica | 96 | |
| Muelleria cryoconicola | Muelleria cryoconicola | 94 | |
| Muelleria kristinae | Muelleria kristinae | 98 | |
| Muelleria lototskayae | Muelleria lototskayae | 99 | |
| Muelleria luculenta | 182 | ||
| Muelleria meridionalis | Muelleria meridionalis | 54 | |
| Muelleria peraustralis | Navicula peraustralis | 55 | |
| Muelleria regigeorgiensis | Muelleria regigeorgiensis | 100 | |
| Muelleria rostrata | Muelleria rostrata | 97 | |
| Muelleria sabbei | Muelleria sabbei | 101 | |
| Muelleria supra | Muelleria supra | 56 | |
| Muelleria tumida | Muelleria tumida | 102 | |
| Muelleria varipunctata | 183 | ||
| Navicula arvensis | 184 | ||
| Navicula bicephala | 185 | ||
| Navicula ectoris | 291 | ||
| Navicula gregaria | Navicula gregaria | 63 | |
| Navicula gregaria | 186 | ||
| Navicula seibigiana | Pinnularia cincta | Navicula cincta (p) | 58 |
| Navicula shackletoni | Navicula shakletoni | 61 | |
| Navicula sp.#1 | 187 | ||
| Navicula veneta | 188 | ||
| Navicula venetiformis | 292 | ||
| Neidium aubertii | 193 | ||
| Nupela chilensis | Anomoeoneis chilensis | 213 | |
| Pinnuavis elegans | Navicula elegans | 216 | |
| Pinnuavis gebhardii | Navicula gebhardii | 294 | |
| Pinnuavis genustriata | Navicula genustriata | 217 | |
| Pinnularia acidicola var. acidicola | 295 | ||
| Pinnularia acidicola var. elongata | 296 | ||
| Pinnularia aff. perirrorata | 231 | ||
| Pinnularia alpiniformis | 297 | ||
| Pinnularia amae | 298 | ||
| Pinnularia angliciformis | 299 | ||
| Pinnularia borealis | 72 | ||
| Pinnularia borealis var. scalaris | 218 | ||
| Pinnularia bottnica | Pinnularia lundii var. baltica | 219 | |
| Pinnularia carteri | Pinnularia similiformis | 220 | |
| Pinnularia cf. microstauron var. nonfasciata | Pinnularia microstauron | 226 | |
| Pinnularia crozetii | 300 | ||
| Pinnularia cuneorostrata | Pinnularia borealis var. cuneorostrata | 301 | |
| Pinnularia decrescens var. kerguelenensis | Pinnularia subsolaris f. kerguelenensis | 302 | |
| Pinnularia divergentissima var. divergentissima | 221 | ||
| Pinnularia divergentissima var. minor | 222 | ||
| Pinnularia dulcicola | Pinnularia quadratarea var. dulcicola | 303 | |
| Pinnularia extralonga | 304 | ||
| Pinnularia kerguelensis | Pinnularia lata var. kerguelensis, Pinnularia alpina var. kerguelensis | 223 | |
| Pinnularia kolbei | 224 | ||
| Pinnularia laperousei | 305 | ||
| Pinnularia lecohui | 306 | ||
| Pinnularia microstauron var. microstauron | 225 | ||
| Pinnularia microstauron var. rostrata | 227 | ||
| Pinnularia neomajor | 228 | ||
| Pinnularia obscura | 229 | ||
| Pinnularia peracuminata | 230 | ||
| Pinnularia petersenii | 232 | ||
| Pinnularia pisciculus | Pinnularia anglica | 233 | |
| Pinnularia rabenhorstii var. franconica | 235 | ||
| Pinnularia rabenhorstii var. rabenhorstii | Pinnularia borealis var. thuringiaca, Pinnularia lata var. thuringiaca | 234 | |
| Pinnularia rabenhorstii var. raphecurvata | 307 | ||
| Pinnularia rabenhorstii var. subantarctica | 308 | ||
| Pinnularia rhombarea var. serrata | 309 | ||
| Pinnularia sagittiformis | 310 | ||
| Pinnularia schoenfelderi | Pinnularia microstauron var. brebissonii f. diminuta | 236 | |
| Pinnularia subantarctica | Pinnularia microstauron var. australis | 311 | |
| Pinnularia subantarctica var. elongata | Pinnularia microstauron var. elongata | 327 | |
| Pinnularia subcommutata | 238 | ||
| Pinnularia vatii | 312 | ||
| Pinnularia viridiformis | 239 | ||
| Pinnularia viridiformis var. minor | 240 | ||
| Sabbea adminensis | Navicula adminensis | Navicula lineola var. perlepida | 92 |
| Sellaphora subantarctica | 324 | ||
| Sellaphora tumida | 325 | ||
| Stauroneis aff. phoenicenteron | 259 | ||
| Stauroneis cf. anceps | 253 | ||
| Stauroneis gracilior | Stauroneis anceps f. gracilis | 254 | |
| Stauroneis kriegeri | Stauroneis anceps var. capitata, Stauroneis pygmaea | 255 | |
| Stauroneis latistauros | Stauroneis latistauros | 78 | |
| Stauroneis muriella | 256 | ||
| Stauroneis obtusa | 257 | ||
| Stauroneis obtusa var. minor | 258 | ||
| Stauroneis smithii var. sagitta | Stauroneis sagitta | 260 | |
| Stauroneis subgracilis | 261 |

