| [12520] Diploneis rex | Appellations de Taxon | 12520 |
| [12521] Desikaneis riesgoviensis | Appellations de Taxon | 12521 |
| [12522] Diploneis mediterranea | Appellations de Taxon | 12522 |
| [12523] Dimeregramma acutum | Appellations de Taxon | 12523 |
| [12524] Delphineis miocenica | Appellations de Taxon | 12524 |
| [12525] Diatoma moniliformis ssp. ovalis | Appellations de Taxon | 12525 |
| [12526] Diploneis mullerthalensis | Appellations de Taxon | 12526 |
| [12527] Diatoma nana | Appellations de Taxon | 12527 |
| [12528] Dickensoniaforma navicularia | Appellations de Taxon | 12528 |
| [12529] Delicata neocaledonica | Appellations de Taxon | 12529 |
| [1253] Philonotis | Appellations de Taxon | 1253 |
| [12530] Delicata nepouiana | Appellations de Taxon | 12530 |
| [12531] Denticula neritica | Appellations de Taxon | 12531 |
| [12532] Diploneis nitescens var. candida | Appellations de Taxon | 12532 |
| [12533] Diatoma ochridana | Appellations de Taxon | 12533 |
| [12534] Didymosphenia siberica | Appellations de Taxon | 12534 |
| [12535] Dickieia subinflata | Appellations de Taxon | 12535 |
| [12536] Diploneis solea | Appellations de Taxon | 12536 |
| [12537] Dickieia soodensis | Appellations de Taxon | 12537 |
| [12538] Diploneis suborbicularis var. suborbicularis | Appellations de Taxon | 12538 |
| [12539] Detonia superba | Appellations de Taxon | 12539 |
| [1254] Philonotis caespitosa | Appellations de Taxon | 1254 |
| [12540] Delicata spitsbergensis | Appellations de Taxon | 12540 |
| [12541] Delicata sparsistriata var. parva | Appellations de Taxon | 12541 |
| [12542] Delicata sparsistriata var. sparsistriata | Appellations de Taxon | 12542 |
| [12543] Diploneis smithii var. pumila | Appellations de Taxon | 12543 |
| [12544] Diadesmis tabellariaeformis | Appellations de Taxon | 12544 |
| [12545] Diadesmis tahitiensis | Appellations de Taxon | 12545 |
| [12546] Discostella tasmanica | Appellations de Taxon | 12546 |
| [12547] Didymosphenia tatrensis | Appellations de Taxon | 12547 |
| [12548] Delphineis simonsenii | Appellations de Taxon | 12548 |
| [12549] Delicata sinensis | Appellations de Taxon | 12549 |
| [1255] Philonotis fontana | Appellations de Taxon | 1255 |
| [12550] Diploneis sejuncta f. constricta | Appellations de Taxon | 12550 |
| [12551] Discostella stelligera var. microrobusta | Appellations de Taxon | 12551 |
| [12552] Diploneis smithii var. constricta | Appellations de Taxon | 12552 |
| [12553] Diploneis smithii var. smithii | Appellations de Taxon | 12553 |
| [12554] Diploneis suborbicularis var. constricta | Appellations de Taxon | 12554 |
| [12555] Discostella stelligera var. robusta | Appellations de Taxon | 12555 |
| [12556] Desikaneis stauroneiformis | Appellations de Taxon | 12556 |
| [12557] Discostella stelligeroides | Appellations de Taxon | 12557 |
| [12558] Discostella stelligera var. tenuis | Appellations de Taxon | 12558 |
| [12559] Denticulopsis dimorpha | Appellations de Taxon | 12559 |
| [1256] Philonotis marchica | Appellations de Taxon | 1256 |
| [12561] Diadesmis templiniana | Appellations de Taxon | 12561 |
| [12562] Denticula tenuis var. frigida | Appellations de Taxon | 12562 |
| [12563] Denticula thermalis | Appellations de Taxon | 12563 |
| [12564] Denticulopsis hustedtii | Appellations de Taxon | 12564 |
| [12565] Diploneis vetula var. americana | Appellations de Taxon | 12565 |
| [12566] Diatoma vulgaris f. breve | Appellations de Taxon | 12566 |