| WebNameShort | |
| Microneis lanceolata (Brebisson in Kutzing) Frenguelli 1923 |
Details |
| Epithemia gibberula var. argentina (Brun in Brun & Tempère) Frenguelli 1923 |
Details |
| Rhopalodia gibberula var. argentina (Brun in Brun & Tempère) Frenguelli 1923 |
Details |
| Navicula viridis var. distinguenda (Cleve) Frenguelli 1923 |
Details |
| Gyrosigma spenceri (spencerii) var. smithii (Grunow in Cleve & Grunow) Frenguelli 1923 |
Details |
| Microneis lanceolata var. dubia (Grunow in Cleve & Grunow) Frenguelli 1923 |
Details |
| Nitzschia amphioxys var. xerophila (Grunow in Cleve & Grunow) Frenguelli 1923 |
Details |
| Nitzschia calica var. salinarum (Grunow in Cleve & Grunow) Frenguelli 1923 |
Details |
| Amphora perpusilla var. exilis (Grunow in Van Heurck) Frenguelli 1923 |
Details |
| Navicula microstauron var. subproducta (Grunow in Van Heurck) Frenguelli 1923 |
Details |
| Melosira granulata var. australiensis (Grunow) Frenguelli 1923 |
Details |
| Navicula ambigua var. aubertii (Héribaud in Héribaud et al.) Frenguelli 1923 |
Details |
| Nitzschia amphioxys var. compacta (Hustedt in Schmidt et al.) Frenguelli 1923 |
Details |
| Gomphonema parvulum var. lagenula (Kützing) Frenguelli 1923 |
Details |
| Sigmatella sigma (Kützing) Frenguelli 1923 |
Details |
| Navicula ovalis var. oblongella (Nageli) Frenguelli 1923 |
Details |
| Microneis lanceolata var. haynaldii (Schaarschmidt-Istvanffi) Frenguelli 1923 |
Details |
| Achnanthes delicatula var. pacis Frenguelli 1923 |
Details |
| Amphora libyca var. cymbiformis Frenguelli 1923 |
Details |
| Amphora libyca f. major Frenguelli 1923 |
Details |