| Diplopharyngeatidae Diplopharyngeata Plehn, 1896 | | - | primary taxonomic authority (describer) | |
| Diplopharyngeata filiformis Plehn, 1896 | | - | primary taxonomic authority (describer) | 167 |
| Discoplana pacificola (Plehn, 1896) | | - | primary taxonomic authority (describer) | |
| Euplana pacificola (Plehn, 1896) | | - | primary taxonomic authority (describer) | 153 |
| Leptoplana chierchiae Plehn, 1896 | | w | primary taxonomic authority (describer) | 155 |
| Leptoplana kuekenthalli Plehn, 1896 | | w | primary taxonomic authority (describer) | 149 |
| Leptoplana pacificola Plehn, 1896 | | - | primary taxonomic authority (describer) | 153 |
| Leptoplana panamensis Plehn, 1896 | | - | primary taxonomic authority (describer) | 151, plate 10, figs 3,4,5,10,11; plate 13, fig 11 |
| Stylochoplaninae Alloioplana Plehn, 1896 | | - | primary taxonomic authority (describer) | |
| Alloioplana delicata Plehn, 1896 | | - | primary taxonomic authority (describer) | 142 |
| Notoplana chierchiae (Plehn, 1896) | | - | primary taxonomic authority (describer) | |
| Notoplana kuekenthali Plehn, 1896 | | - | primary taxonomic authority (describer) | 149 |
| Plagiotata promiscua Plehn, 1896 | | - | primary taxonomic authority (describer) | 144 |
| Stylochoplana panamensis (Plehn, 1896) | | - | primary taxonomic authority (describer) | 151, plate 10, figs 3,4,5,10,11; plate 13, fig 11 |
| Latocestinae Latocestus Plehn, 1896 | [with synonyms] | - | primary taxonomic authority (describer) | |
| Latocestus atlanticus Plehn, 1896 | | - | primary taxonomic authority (describer) | |
| Plehnia arctica (Plehn, 1896) | | - | primary taxonomic authority (describer) | 140, 146 |
| Discoplana pacificola (Plehn, 1896) | | w | primary taxonomic authority (describer) | 153 |
| Euplanidae Diplopharyngeata Plehn, 1896 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Diplopharyngeata filiformis Plehn, 1896 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Euplana pacificola (Plehn, 1896) | | w | primary taxonomic authority (describer) | |
| Euplanoida pacificola (Plehn, 1896) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Leptoplana cherchiae Plehn, 1896 | | w | primary taxonomic authority (describer) | |
| Leptoplana kükenthali Plehn, 1896 | | w | primary taxonomic authority (describer) | |
| Leptoplana pacificola Plehn, 1896 | | w | primary taxonomic authority (describer) | |
| Leptoplana panamensis Plehn, 1896 | | w | primary taxonomic authority (describer) | |
| Plehniidae Acelis (part) Plehn, 1896 | | w | primary taxonomic authority (describer) | 140, 146, 149 |
| Notoplana atlantica (Plehn, 1896) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Notoplana chierchiae (Plehn, 1896) | | w | primary taxonomic authority (describer) | |
| Notoplana kuekenthali (Plehn, 1896) | [with synonyms] | w | primary taxonomic authority (describer) | 149 |
| Notocomplana chierchiae (Plehn, 1896) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Notoplanidae Plagiotata Plehn, 1896 | | w | primary taxonomic authority (describer) | |
| Plagiotata promiscua Plehn, 1896 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Stylochoplanidae Alloioplana Plehn, 1896 | | w | primary taxonomic authority (describer) | |
| Alloioplana delicata Plehn, 1896 | | w | primary taxonomic authority (describer) | |
| Armatoplana panamensis (Plehn, 1896) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Latocestidae Latocestus Plehn, 1896 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Latocestus atlanticus Plehn, 1896 | | w | primary taxonomic authority (describer) | |
| Acelis (part) arctica Plehn, 1896 | | w | primary taxonomic authority (describer) | 146 |
| Plehnia arctica (Plehn, 1896) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Acanthozoon indicum (Plehn, 1896) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Acanthozoon marginatum (Plehn, 1896) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Thysanozoon indicum (Plehn, 1896) | | w | primary taxonomic authority (describer) | |
| Pseudocerotidae Thysanoplana (1) Plehn, 1896 | | w | primary taxonomic authority (describer) | |
| Thysanoplana (1) indicum Plehn, 1896 | | w | primary taxonomic authority (describer) | |
| Thysanoplana (1) marginata Plehn, 1896 | | w | primary taxonomic authority (describer) | |
| Stylochoplana panamensis (Plehn, 1896) | | w | primary taxonomic authority (describer) | |