149,409 species and infraspecific names are in the database, 20,332 images, 57,462 bibliographic items, 379,303 distributional records.

Diploneis Ehrenberg ex Cleve, 1894

Classification:
Empire Eukaryota
Kingdom Chromista
Phylum Bacillariophyta
Subphylum Bacillariophytina
Class Bacillariophyceae
Subclass Bacillariophycidae
Order Naviculales
Suborder Diploneidineae
Family Diploneidaceae

Lectotype species: Diploneis didyma (Ehrenberg) Ehrenberg

Original publication:Cleve, P.T. (1894). Synopsis of the naviculoid diatoms. Part I. Kongliga Svenska Vetenskapsakademiens Handlingar, series 4 26(2): 1-194, 5 pl.
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Type designated in Boyer, C.S. (1927). Synopsis of North American diatomaceae, Supplement, Part 2.- Naviculatae, Surirellatae. Proceedings of the Academy of Natural Sciences of Philadelphia 79: 229-583.
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Taxonomic status: currently recognized as a distinct genus.

Most recent taxonomic treatment adopted: Kociolek, J.P. & Spaulding, S.A. (2003). Symmetrical Naviculoid Diatoms. In: Freshwater Algae of North America, Ecology and Classification. (Wehr, J.D. & Sheath, R.G. Eds), pp. 637-654. San Diego: Academic Press.

Nomenclatural notes
Lectotype designated by Cleve (1927: 345). - (27 Jan 2017) - M.D. Guiry

Comments: Round, Crawford & Mann (1990: 128) record this family as being a member of the Suborder Diploneidineae. Scott & Thomas (2005: 171) record this genus as being a member of the Family Bacillariaceae.

NCBI Nucleotide Sequences

Numbers of names and species: There are 613 species (and infraspecific) names in the database at present, of which 188 have been flagged as currently accepted taxonomically.

Names: ('C' indicates a name that is currently accepted taxonomically; 'S' a homotypic or heterotypic synonym; 'U' indicates a name of uncertain taxonomic status, but which has been subjected to some verification nomenclaturally; 'P' indicates a preliminary AlgaeBase entry that has not been subjected to any kind of verification. For more information on a species click on it to activate a link to the Species database):

Diploneis abscondita H.Lange-Bertalot & A.Fuhrmann C 
Diploneis adeliae Manguin P 
Diploneis adiaphana H.-J.Schrader P 
Diploneis adonis var. oamaruensis Cleve S 
Diploneis adonis var. ganymedes Cleve P 
Diploneis adonis var. gibbosa (J.-J.Brun) Cleve P 
Diploneis adonis var. tiltilensis Frenguelli P 
Diploneis adonis (J.Brun) Cleve C 
Diploneis advena (A.W.F.Schmidt) Cleve C 
Diploneis advena var. sansegana (Grunow) Cleve P 
Diploneis advena var. japonica F.Meister P 
Diploneis advena var. parca (A.Schmidt) Cleve P 
Diploneis advena var. recta (J.-J.Brun & Héribaud-Joseph) Cleve P 
Diploneis advena var. schmidtii H.Heiden P 
Diploneis aequorea H.Heiden P 
Diploneis aestiva (Donkin) Cleve C 
Diploneis aestiva var. delicata (A.Schmidt) R.Ross C 
Diploneis aestiva var. fusca (Gregory) R.Ross P 
Diploneis aestiva var. aestiva (Donkin) Cleve P 
Diploneis aestiva f. major (H.Peragallo & M.Peragallo) T.V.Desikachary P 
Diploneis aestuari Hustedt C 
Diploneis aetiopum Ehrenberg P 
Diploneis africana H.Heiden P 
Diploneis alpina Meister C 
Diploneis alpina f. baicalensis Skvortzov & C.I.Meyer P 
Diploneis alpina var. subconstricta (A.Cleve) A.Cleve P 
Diploneis altana Kuliskovskiy & Lange-Bertalot C 
Diploneis amicula Kuliskovskiy & Lange-Bertalot C 
Diploneis andama Kuliskovskiy & Lange-Bertalot C 
Diploneis andina Frenguelli P 
Diploneis antinitescens (M.Peragallo) F.W.Mills S 
Diploneis antiqua A.Cleve C 
Diploneis aokiensis M.Idei C 
Diploneis apis (Ehrenberg) Ehrenberg C 
Diploneis arctica Cleve C 
Diploneis areolata Cleve P 
Diploneis argentina (Frenguelli) Frenguelli C 
Diploneis atmosphaerica (Ehrenberg) R.Jahn & Kusber C 
Diploneis baicalensis Skvortzov & Meyer C 
Diploneis baicaloculata Kuliskovskiy & Lange-Bertalot C 
Diploneis baicaloparma Kuliskovskiy & Lange-Bertalot C 
Diploneis baicalpetersenii Kuliskovskiy & Lange-Bertalot C 
Diploneis balcanica N.G.Ognjanova-Rumenova & K.Buczkó C 
Diploneis beyrichiana (A.W.F.Schmidt) Amossé C 
Diploneis binaria (A.Schmidt) Cleve P 
Diploneis bioculata var. vittata Cleve S 
Diploneis biremiformis S.J.M.Droop C 
Diploneis biseriata Cleve P 
Diploneis biseriata var. australis T.V.Desikachary & P.Prema P 
Diploneis biseriata var. galapagensis Cleve P 
Diploneis biseriata var. lata Cleve P 
Diploneis boldtiana Cleve C 
Diploneis boldtiana var. acuminata Playfair C 
Diploneis boldtiana var. australica Playfair C 
Diploneis boldtiana var. ovalis Playfair C 
Diploneis boldtiana var. baikalensis Skvortzov P 
Diploneis boldtiana var. punctata A.Cleve P 
Diploneis boldtiana var. robusta Cleve-Euler S 
Diploneis bombiformis Cleve S 
Diploneis bomboides (A.W.F.Schmidt) Cleve S 
Diploneis bomboides var. madagascarensis Cleve C 
Diploneis bomboides var. [madagascarensis] f. minor Cleve C 
Diploneis bomboides var. moesta (A.Schmidt) Cleve P 
Diploneis bomboides var. media (Grunow) Hustedt U 
Diploneis bombus (Ehrenberg) Ehrenberg C 
Diploneis bombus var. bombiformis (Cleve) Hustedt P 
Diploneis bombus var. egena (A.Schmidt) Cleve P 
Diploneis bombus var. bullata Cleve P 
Diploneis bombus var. densestriata (A.Schmidt) Cleve C 
Diploneis borealis (Grunow) Cleve C 
Diploneis borealis var. subconstricta Cleve P 
Diploneis budayana (Pantocsek) A.Jurilj P 
Diploneis budayana var. punctata A.Jurilj P 
Diploneis burgitensis Prudent C 
Diploneis burgitensis var. alpina (F.Meister) A.Cleve P 
Diploneis burgitensis f. linearis (Ant.Mayer) Compère P 
Diploneis burgitensis f. linearis (Mayer) Compère P 
Diploneis buriatica Kuliskovskiy & Lange-Bertalot C 
Diploneis caffra (M.H.Giffen) Witkowski, Lange-Bertalot & Metzeltin C 
Diploneis calcilacustris Lange-Bertalot & A.Fuhrmann C 
Diploneis campylodiscus (Grunow) Cleve C 
Diploneis carpathorum (Pantocsek) Pantocsek P 
Diploneis chersonensis (Grunow) Cleve C 
Diploneis chilensis (Hustedt) Lange-Bertalot P 
Diploneis chinensis Cleve C 
Diploneis circumnodosa (J.-J.Brun) Cleve P 
Diploneis clepsydra Cleve P 
Diploneis clevei C.W.Fontell P 
Diploneis coarctata (Schmidt) Cleve U 
Diploneis coffaeiformis (Schmidt) Cleve C 
Diploneis coffaeiformis var. densestriata (A.Schmidt) Cleve P 
Diploneis coffaeiformis var. subcircularis (A.Schmidt) Cleve P 
Diploneis coffeiformis var. subcircularis (A.Schmidt) Cleve P 
Diploneis colae S.J.M.Droop C 
Diploneis compar (C.Janisch) Cleve P 
Diploneis confecta (A.Schmidt) F.W.Mills P 
Diploneis congrua (C.Janisch) Cleve P 
Diploneis conopeata Kuliskovskiy & Lange-Bertalot C 
Diploneis conops Ehrenberg P 
Diploneis constantinii (Skvortzov) Skabichevskij P 
Diploneis constricta Cleve C 
Diploneis constricta var. distans Cleve P 
Diploneis constricta f. minuta Cleve P 
Diploneis contigua var. eudoxia (A.Schmidt) Cleve S 
Diploneis contigua var. eugenia (A.W.F.Schmidt) Cleve S 
Diploneis contigua var. zechenteri (Pantocsek) Cleve P 
Diploneis crabro (Ehrenberg) Ehrenberg C 
Diploneis crabro var. excavata Hustedt C 
Diploneis crabro var. expleta (A.Schmidt) Cleve P 
Diploneis crabro var. multicostata (Grunow) Cleve P 
Diploneis crabro var. pandura (Brébisson) Cleve C 
Diploneis crabro var. confecta (A.Schmidt) Cleve P 
Diploneis crabro var. constricta A.Jurilj P 
Diploneis crabro f. cubaensis Foged P 
Diploneis crabro var. didelta Cleve P 
Diploneis crabro var. dirhombus (A.Schmidt) Cleve P 
Diploneis crabro var. gibelii (A.Schmidt) Cleve P 
Diploneis crabro var. gloriosa (J.-J.Brun) Cleve P 
Diploneis crabro var. hungarica Cleve P 
Diploneis crabro var. limitanea (A.Schmidt) Cleve S 
Diploneis crabro var. minuta Cleve P 
Diploneis crabro var. nankoorensis (Grunow) Cleve P 
Diploneis crabro var. omearae Grunow C 
Diploneis crabro var. pandurella Cleve P 
Diploneis crabro var. perpusilla Cleve P 
Diploneis crabro var. separabilis (A.Schmidt) Cleve P 
Diploneis crabro var. subelliptica Cleve C 
Diploneis crabro var. suspecta (A.W.F.Schmidt) Cleve S 
Diploneis crabro f. suspecta (A.W.F.Schmidt) Hustedt C 
Diploneis crassibiseriata Kuliskovskiy & Lange-Bertalot C 
Diploneis curiosa Metzeltin, Lange-Bertalot & Nergui C 
Diploneis cynthia var. intermedia M.Peragallo U 
Diploneis cynthia (A.W.F.Schmidt) Cleve C 
Diploneis cynthia var. elongata Cleve P 
Diploneis cynthia var. minuta Cleve P 
Diploneis cynthia var. sibirica Cleve P 
Diploneis dalmatica (Grunow) Cleve C 
Diploneis dalmatica var. vulpecula (A.Schmidt) Cleve P 
Diploneis debyi (Pantocsek) Cleve C 
Diploneis decipiens Cleve-Euler C 
Diploneis decipiens var. parallela Cleve-Euler C 
Diploneis decipiens var. typica A.Cleve S 
Diploneis demta (A.Schmidt) Cleve P 
Diploneis densestriata (A.Schmidt) C.S.Boyer P 
Diploneis didelta Ehrenberg P 
Diploneis didyma (Ehrenberg) Ehrenberg C - type
Diploneis didyma f. linearis Mayer C 
Diploneis didyma f. bavarica P.E.E.Kaiser P 
Diploneis didyma var. bavarica f. linearis Ant.Mayer P 
Diploneis didyma var. bavarica f. subinflata Ant.Mayer P 
Diploneis didyma var. bavarica f. typica Ant.Mayer P 
Diploneis didyma var. ?lesdiana (Pantocsek) M.Hajós P 
Diploneis didyma var. obliqua Brun S 
Diploneis dilatata (M.Peragallo) H.Lange-Bertalot & A.Fuhrmann C 
Diploneis dimorpha Hustedt P 
Diploneis diplosticta (Grunow) Hustedt C 
Diploneis discrepans (A.Schmidt) Cleve P 
Diploneis distortum W.Smith C 
Diploneis disturbata A.Jurilj P 
Diploneis divergens (A.W.F.Schmidt) Cleve C 
Diploneis divergens var. digrediens (A.Schmidt) Cleve P 
Diploneis dombilitensis f. maeotica A.I.Proshkina-Lavrenko P 
Diploneis domblittensis (Grunow) Cleve C 
Diploneis domblittensis var. subconstricta A.Cleve S 
Diploneis domblittensis var. domblittensis (Grunow) Cleve P 
Diploneis domblittensis var. incisa A.Cleve C 
Diploneis domblittensis var. baikalensis Skvortzov P 
Diploneis droopii Witkowski, Belegratis & Economu-Amillii C 
Diploneis duplopunctata C.W.Fontell P 
Diploneis elesdiana (Pantocsek) A.Jurilj P 
Diploneis elfvingiana C.W.Fontell P 
Diploneis elfvingiana var. latefurcata C.W.Fontell S 
Diploneis elliptica (Kützing) Cleve C 
Diploneis elliptica var. ladogensis Cleve S 
Diploneis elliptica var. elliptica (Kützing) Cleve P 
Diploneis elliptica var. pygmaea A.Cleve C 
Diploneis elliptica var. cocconeoides Rabenhorst P 
Diploneis elliptica var. baicalensis Skvortzov & C.I.Meyer P 
Diploneis elliptica var. elongata P.Fusey P 
Diploneis elliptica var. genuina F.Meister P 
Diploneis elliptica var. grandis (Grunow) Cleve S 
Diploneis elliptica var. hankae Skvortzov P 
Diploneis elliptica var. linearis A.Cleve P 
Diploneis elliptica var. magnapunctata Fontell C 
Diploneis elliptica f. minima Ant.Mayer P 
Diploneis elliptica var. mongolica K.S.Mereschkowsky P 
Diploneis elliptica var. ostracodarum (Pantocsek) Cleve S 
Diploneis elliptica f. baicalensis Skvortzov & C.I.Meyer U 
Diploneis elliptica var. ostracodarum f. minor Cleve-Euler U 
Diploneis elliptica var. oblongella (Nägeli) F.W.Mills S 
Diploneis elliptica var. minutissima (Grunow) F.W.Mills S 
Diploneis elliptica var. tropica (Zimmermann) Frenguelli P 
Diploneis elliptica f. rhombica Hustedt C 
Diploneis ellipticolinearis Kuliskovskiy & Lange-Bertalot C 
Diploneis entomon (Ehrenberg) Ehrenberg C 
Diploneis entomon f. dinodosa A.Cleve P 
Diploneis eudoxia (A.Schmidt) Jørgensen C 
Diploneis eugenia (A.W.F.Schmidt) Boyer C 
Diploneis excentrica C.S.Boyer P 
Diploneis exemta (A.Schmidt) Cleve P 
Diploneis exemta var. crabroniformis (Grunow) Cleve P 
Diploneis exemta var. digrediens Cleve P 
Diploneis eximia Metzeltin, Lange-Bertalot & Nergui P 
Diploneis expleta (A.Schmidt) Boyer P 
Diploneis faba Ehrenberg C 
Diploneis fenestrata J.C.Taylor & B.Karthick C 
Diploneis finnica (Ehrenberg) Cleve C 
Diploneis finnica f. baicalensis Skvortzow & K.I.Meyer S 
Diploneis finnica f. sinica Skvortzow [Skvortzov] C 
Diploneis finnicoburyatica Lange-Bertalot & Kulikovskiy C 
Diploneis fontanella Lange-Bertalot C 
Diploneis fontium Reichardt & Lange-Bertalot C 
Diploneis formica H.Okuno C 
Diploneis frickei (H.F.Van Heurck) H.Heiden P 
Diploneis fusca (W.Gregory) Cleve C 
Diploneis fusca var. aestiva (Donkin) Hustedt S 
Diploneis fusca var. delicata (A.Schmidt) Cleve S 
Diploneis fusca var. gregorii Cleve C 
Diploneis fusca var. norvegica Cleve C 
Diploneis fusca var. tenuipunctata Cleve C 
Diploneis fusca var. delicta (A.Schmidt) Cleve P 
Diploneis fusca var. japonica Cleve P 
Diploneis fusca var. nigricans (Pantocsek) Cleve P 
Diploneis fusca var. norvegica f. minor Skvortzov P 
Diploneis fusca var. oamaruensis Cleve P 
Diploneis fusca var. pelagi (A.W.F.Schmidt) Cleve C 
Diploneis fusca var. pseudofusca (Pantocsek) Cleve P 
Diploneis fusca var. subfusca (Pantocsek) Cleve P 
Diploneis fusca var. subrectangularis Cleve P 
Diploneis fusca var. van-heurckii Cleve U 
Diploneis fusca var. hyperborea (Grunow) Hustedt P 
Diploneis ganga Kuliskovskiy & Lange-Bertalot C 
Diploneis gemmata (Greville) Cleve C 
Diploneis gemmata var. fossilis (Pantocsek) Cleve P 
Diploneis gemmata var. madagascarensis Cleve P 
Diploneis gemmata var. minor (A.Schmidt) Cleve P 
Diploneis gemmata var. oamaruensis Cleve P 
Diploneis gemmata var. pristiophora (C.Janisch) Cleve P 
Diploneis gemmata var. pristiophora f. minuta Cleve P 
Diploneis gemmata var. punctata Cleve P 
Diploneis gemmata var. spectabilis (Grunow) Cleve P 
Diploneis gemmata var. typica Cleve P 
Diploneis gemmatula (Grunow) Cleve P 
Diploneis gemmatula var. beyrichiana (A.Schmidt) Cleve P 
Diploneis gemmatula var. beyrichiana f. minor (Pantocsek).Cleve P 
Diploneis gemmatula var. grunowii Cleve P 
Diploneis gemmatula var. hungarica Cleve P 
Diploneis gemmatula var. lacrimans (A.Schmidt) Cleve P 
Diploneis gemmatula var. moravica Cleve P 
Diploneis glacialis Ehrenberg P 
Diploneis goohon Kuliskovskiy & Lange-Bertalot C 
Diploneis gorjanovicii var. major Chin & Lin S 
Diploneis gorjanovicii (Pantocsek) Hustedt C 
Diploneis gracilis Ehrenberg P 
Diploneis graeffi f. minor Cleve P 
Diploneis graeffii (Grunow) Cleve C 
Diploneis gravelleana R.Hagelstein P 
Diploneis gruendleri (A.Schmidt) Cleve C 
Diploneis guinardiana (Brun) Cleve C 
Diploneis hannae Frenguelli C 
Diploneis haploa H.-J.Schrader P 
Diploneis heemskerkiana (Brockmann) S.J.M.Droop C 
Diploneis heisingeriae A.Jurilj P 
Diploneis heteromorphiforma Metzeltin, Lange-Bertalot & Nergui P 
Diploneis hilarula (Pantocsek) F.W.Mills C 
Diploneis hinziae Lange-Bertalot & A.Fuhrmann C 
Diploneis hoevsgoelensis E.Jovanovska, Z.Levkov & M.B.Edlund C 
Diploneis hormopunctata M.H.Hohn & J.Hellerman U 
Diploneis hospes (A.W.F.Schmidt) comb. ined. U 
Diploneis hudsonis (Grunow) Cleve S 
Diploneis hustedti F.Meister P 
Diploneis hyalina (Donkin) Cleve C 
Diploneis hyperborea (Grunow) Cleve P 
Diploneis hyperborea var. excisa (A.Schmidt) Cleve P 
Diploneis hyperborea f. minor J.Thomas & E.A.Gonzalves P 
Diploneis ideii Kuliskovskiy & Lange-Bertalot C 
Diploneis imperialis Ehrenberg P 
Diploneis inaequalis Østrup P 
Diploneis incurvata (Gregory) Cleve C 
Diploneis incurvata f. stricta Hustedt C 
Diploneis incurvata var. arabica J.N.Misra P 
Diploneis incurvata var. hungarica M.Hajós P 
Diploneis incurvata var. dubia Hustedt C 
Diploneis infernalis Lange-Bertalot & Krammer C 
Diploneis inscripta Cleve C 
Diploneis inscripta var. japonica Skvortzov P 
Diploneis insolitus M.H.Hohn & J.Hellerman C 
Diploneis interrupta (Kützing) Cleve C 
Diploneis interrupta var. clancula (A.Schmidt) Cleve C 
Diploneis interrupta var. heeri (Pant.) Hustedt P 
Diploneis interrupta var. caffra M.H.Giffen S 
Diploneis interrupta var. fossilis M.Peragallo P 
Diploneis interrupta var. gorjanovicii (Pantocsek) Cleve P 
Diploneis interrupta var. major M.Peragallo P 
Diploneis interrupta var. tallyana (Grunow) Cleve P 
Diploneis interrupta var. wiesneri (Pantocsek) Cleve P 
Diploneis interrupta var. zanzibarica (Grunow) Cleve P 
Diploneis interrupta var. novaeseelandiae (A.Schimidt) H.Peragallo & M.Peragllo S 
Diploneis interrupta var. samoensis M.Peragallo U 
Diploneis jasnitski Skabichevskij C 
Diploneis jasnitskii A.P.Skabichevskij P 
Diploneis kahlii Lange-Bertalot & U.Rumrich C 
Diploneis kawabatae Gerd Moser C 
Diploneis konstantini A.P.Skabichevskij P 
Diploneis krammeri Lange-Bertalot & E.Reichardt C 
Diploneis kuetzingii var. bullata Cleve P 
Diploneis kuetzingii (Grunow) Cleve U 
Diploneis laciniosa (A.Schmidt) Cleve P 
Diploneis lacrimans (Schmidt in Schmidt & al.)Hustedt P 
Diploneis lacrimans var. coarctata (Schmidt) Hustedt U 
Diploneis lacus-lemani J.Brun S 
Diploneis lacus-lemani var. gibbosa J.Brun S 
Diploneis ladogensis (Cleve) H.Lange-Bertalot & A.Fuhrmann C 
Diploneis lata Skvortzov P 
Diploneis lata var. minuta Skvortzov P 
Diploneis lata var. punctata Skvortzov P 
Diploneis late-elliptica Skabichevskij C 
Diploneis latefurcata (C.W.Fontell) A.Cleve C 
Diploneis lesinensis Grunow P 
Diploneis letourneuri Cleve P 
Diploneis lijiangensis Huang C 
Diploneis linearielliptica Metzeltin, Lange-Bertalot & Nergui C 
Diploneis linearifera M.Idei C 
Diploneis linearis Otto Müller S 
Diploneis lineata var. minuta P.Schulz P 
Diploneis lineata f. pusilla Cleve P 
Diploneis lineata (Donkin) Cleve C 
Diploneis litoralis var. litoralis (Donkin) Cleve P 
Diploneis litoralis (Donkin) Cleve P 
Diploneis litoralis var. arctica Cleve P 
Diploneis litoralis var. hospes (A.Schmidt) Cleve S 
Diploneis litoralis var. hyperborea Cleve P 
Diploneis littoralis f. hybride A.Cleve P 
Diploneis littoralis (Donkin) Cleve C 
Diploneis littoralis var. clathrata (Østrup) Cleve C 
Diploneis lusatica H.Lange-Bertalot & A.Fuhrmann C 
Diploneis maeandra A.Cleve P 
Diploneis major var. cuneata A.Cleve P 
Diploneis major var. permagna (Pantocsek) Cleve P 
Diploneis major var. subconstricta Skvortzov P 
Diploneis major Cleve C 
Diploneis manguinii P.Fusey P 
Diploneis marginata var. commutata Cleve P 
Diploneis marginata var. gigantea Cleve P 
Diploneis marginata var. spectatissima (Greville) Cleve P 
Diploneis marginestriata var. minor M.R.Suxena & V.Venkateswarlu C 
Diploneis marginestriata var. nipponica Skvortzow [Skvortzov] C 
Diploneis marginestriata Hustedt C 
Diploneis mauleri (J.J.Brun) Cleve C 
Diploneis mauleri var. baicalensis Skvortzov & C.I.Meyer P 
Diploneis mauleri var. borussica (Cleve) Cleve P 
Diploneis mauleri var. borussica f. baicalensis Skvortzov & C.I.Meyer P 
Diploneis mauleri var. foreli J.-J.Brun P 
Diploneis maulerii (Brun) Cleve P 
Diploneis mediterranea var. elliptica M.Peragallo U 
Diploneis mediterranea (Grunow) Cleve C 
Diploneis mesolia Ehrenberg P 
Diploneis metzeltinii Kuliskovskiy & Lange-Bertalot C 
Diploneis meyeri A.P.Skabichevskij P 
Diploneis meyeri Skvortzov P 
Diploneis meyerii Skabichevskij C 
Diploneis microtatos (Pantocsek) Cleve P 
Diploneis microtatos var. christianii (W.J.Gascoyne ex T.Christian) Cleve P 
Diploneis minima Hustedt P 
Diploneis minuta var. peterseni (Hustedt) A.Cleve S 
Diploneis minuta J.B.Petersen C 
Diploneis mirabilis Cleve P 
Diploneis mirabilis D.König P 
Diploneis modica Hustedt C 
Diploneis modicahassiaca H.Lange-Bertalot & A.Fuhrmann C 
Diploneis modicella B.J.Cholnoky P 
Diploneis mongolica Metzeltin, Lange-Bertalot & Nergui C 
Diploneis mullerthalensis Monnier & Ector C 
Diploneis munda (C.Janisch) Cleve P 
Diploneis munge Kuliskovskiy & Lange-Bertalot C 
Diploneis muscaeformis (Grunow) Cleve P 
Diploneis muscaeformis var. constricta Cleve P 
Diploneis muscaeformis var. genuina Cleve P 
Diploneis muscaeformis var. placida (A.Schmidt) Cleve P 
Diploneis muscaeformis var. pusilla Cleve P 
Diploneis nanofontanella H.Lange-Bertalot & A.Fuhrmann C 
Diploneis nanometzeltinii Kuliskovskiy & Lange-Bertalot C 
Diploneis natalensis B.J.Cholnoky P 
Diploneis nitescens var. fossilis (Pantocsek) Cleve P 
Diploneis nitescens var. fuegiana (P.C.M.Petit) Cleve P 
Diploneis nitescens var. serratula (Grunow) Cleve P 
Diploneis nitescens var. rhomboides M.Peragallo U 
Diploneis nitescens var. candida McCall C 
Diploneis nitescens (W.Gregory) Cleve C 
Diploneis nitidula J.-J.Brun P 
Diploneis nonelliptica Kuliskovskiy & Lange-Bertalot C 
Diploneis notabilis f. expleta (A.Schmidt) Cleve P 
Diploneis notabilis var. expleta (A.Schmidt) E.H.Jörgensen P 
Diploneis notabilis f. genuina Cleve P 
Diploneis notabilis var. oblonga H.Heiden P 
Diploneis notabilis (Greville) Cleve C 
Diploneis notabilis var. tenera Proshkina-Lavrenko C 
Diploneis notata Østrup P 
Diploneis novaeseelandiae (A.Schmidt) Hustedt C 
Diploneis oamaruensis (Cleve) Mills P 
Diploneis obliqua (Brun) Hustedt C 
Diploneis oblongella var. fossilis (Pantocsek) A.Cleve P 
Diploneis oblongella var. medioinflata A.Cleve P 
Diploneis oblongella var. ovalis (Hilse) R.Ross S 
Diploneis oblongella var. pumila (Grunow) N.Woodhead & R.D.Tweed S 
Diploneis oblongella var. genuina Nägeli S 
Diploneis oblongella var. rhombica (A.Mayer) Woodhead & Tweed U 
Diploneis oblongella (Nägeli ex Kützing) Cleve-Euler C 
Diploneis oblongella var. gibbosa (McCall) Cleve-Euler C 
Diploneis oblongellopsis Lange-Bertalot & A.Fuhrmann C 
Diploneis obtusa Kuliskovskiy & Lange-Bertalot C 
Diploneis ocellata Cleve C 
Diploneis oculata (Brébisson) Cleve C 
Diploneis oculata var. linearis O.Gallik P 
Diploneis oculata var. nipponica Skvortzov P 
Diploneis oculata var. atomus (Rabenhorst) M.Peragallo S 
Diploneis oestrupii Hustedt C 
Diploneis okhapkinii Kuliskovskiy & Lange-Bertalot C 
Diploneis omearae (Grunow) Grunow P 
Diploneis omearae var. pusilla Cleve C 
Diploneis ordines Kuliskovskiy & Lange-Bertalot C 
Diploneis ornata (A.Schmidt) Cleve P 
Diploneis ostracodarum (Pantocsek) A.Jurilj C 
Diploneis ostracodarum var. elongata A.Jurilj P 
Diploneis ostrobottnica A.Cleve P 
Diploneis ovalis var. bipunctata Skvortzov P 
Diploneis ovalis var. contracta J.Holmboe P 
Diploneis ovalis var. genuina Ant.Mayer P 
Diploneis ovalis var. genuina f. minima Ant.Mayer P 
Diploneis ovalis var. hilseana F.Meister P 
Diploneis ovalis var. jeniseyensis Skvortzov P 
Diploneis ovalis var. nipponica Skvortzov P 
Diploneis ovalis f. baltica A.Cleve C 
Diploneis ovalis var. [oblongella] f. elongata Otto Müller P 
Diploneis ovalis var. [oblongella] f. nipponica Skvortzov C 
Diploneis ovalis f. subinflata Østrup P 
Diploneis ovalis var. tortonica M.Hajós P 
Diploneis ovalis var. validior A.Cleve P 
Diploneis ovalis var. rhombica A.Mayer U 
Diploneis ovalis (Hilse) Cleve C 
Diploneis ovalis var. oblongella (Nägeli) Cleve S 
Diploneis ovalis f. gibbosa McCall S 
Diploneis ovalis subsp. arctica Lange-Bertalot P 
Diploneis ovalis var. pumila (Grunow) Cleve S 
Diploneis pantocsekii A.Cleve C 
Diploneis papula (A.W.F.Schmidt) Cleve C 
Diploneis papula var. constricta Hustedt C 
Diploneis parabudayana E.Jovanovska, T.Nakov & Z.Levkov C 
Diploneis parahinziae Lange-Bertalot, Fuhrmann & Ringel C 
Diploneis paramarginestriata Kuliskovskiy & Lange-Bertalot C 
Diploneis paraparma E.Jovanovska, Z.Levkov & M.B.Edlund) C 
Diploneis parauschkaniensis Kuliskovskiy & Lange-Bertalot C 
Diploneis parca (A.W.F.Schmidt) Boyer C 
Diploneis parma Cleve C 
Diploneis parma var. jeniseyensis Skvortzov P 
Diploneis parma var. minuta Skvortzov P 
Diploneis patagonica Otto Müller S 
Diploneis pearsalli M.M.Salah P 
Diploneis pelagi (A.Schmidt) C.S.Boyer P 
Diploneis perforata A.Jurilj P 
Diploneis petersenii Hustedt C 
Diploneis pfitzeriana (O'Meara) R.Ross P 
Diploneis placentula Brébisson P 
Diploneis placida (A.W.F.Schmidt) Hustedt C 
Diploneis platessa Cleve & E.Grove P 
Diploneis pneumatica S.J.M.Droop C 
Diploneis poretzkyi E.A.Cheremisinova P 
Diploneis poroidea A.Jurilj P 
Diploneis praeclara (Pantocsek) A.Cleve P 
Diploneis praeclara var. densa J.Jurilj P 
Diploneis praesejuncta S.J.M.Droop C 
Diploneis praestes (A.Schmidt) Cleve P 
Diploneis praetermissa Lange-Bertalot & A.Fuhrmann C 
Diploneis prisca (A.Schmidt) Cleve P 
Diploneis prisca A.Jurilj P 
Diploneis prisca var. orientalis Skvortzov P 
Diploneis proserpinae Ehrenberg P 
Diploneis pseudaokiensis Kuliskovskiy & Lange-Bertalot C 
Diploneis pseudobombiformis Hustedt C 
Diploneis pseudomeyeri Kuliskovskiy & Lange-Bertalot C 
Diploneis pseudopetersenii B.J.Cholnoky P 
Diploneis pseudovalis Hustedt C 
Diploneis puella (Schumann) Cleve C 
Diploneis puella var. baikalensis Skvortzow [Skvortzov] C 
Diploneis puellafallax H.Lange-Bertalot & A.Fuhrmann C 
Diploneis puelloides P.Fusey P 
Diploneis pulcherrima Hustedt P 
Diploneis pulchra E.Jovanovska, T.Nakov & Z.Levkov C 
Diploneis pullus Ehrenberg P 
Diploneis quasispinulosa Kuliskovskiy & Lange-Bertalot C 
Diploneis recta (J.-J.Brun & Héribaud-Joseph) C.S.Boyer P 
Diploneis reichardtii var. tschuktschorum (Cleve) H.Heiden P 
Diploneis reichardtii (Grunow) Heiden S 
Diploneis reticulata A.Jurilj P 
Diploneis rex S.J.M.Droop C 
Diploneis rhombica Skabichevskii C 
Diploneis rhombus Ehrenberg P 
Diploneis robusta (Cleve-Euler) Cleve-Euler C 
Diploneis robustus R.Subrahmanyan P 
Diploneis rostrata E.J.F.Wood P 
Diploneis rotunda E.Jovanovska, T.Nakov & Z.Levkov C 
Diploneis rouxioides H.-J.Schrader P 
Diploneis rupestris Skvortzow [Skvortzov] C 
Diploneis schmidtii Cleve C 
Diploneis sejuncta (A.Schmidt) E.Jørgensen C 
Diploneis separanda Lange-Bertalot C 
Diploneis serratula (Grunow) Hustedt C 
Diploneis sharbin Kuliskovskiy & Lange-Bertalot C 
Diploneis skvortzovii A.P.Skabichevskij P 
Diploneis skvortzowii var. punctata P 
Diploneis skvortzowii Skabichevskij C 
Diploneis smithi var. chilensis Hustedt P 
Diploneis smithii var. adversa R.Hagestein P 
Diploneis smithii var. major (Cleve) A.Amossé P 
Diploneis smithii var. nipponica Skvortzov P 
Diploneis smithii var. oblongella Skvortzov P 
Diploneis smithii var. permagna A.Cleve P 
Diploneis smithii var. pumila f. nipponica Skvortzov & M.Noda P 
Diploneis smithii var. rhombica A.Cleve U 
Diploneis smithii var. rhombica f. maior J.Thomas & E.A.Gonzalves P 
Diploneis smithii var. chilensis Hustedt P 
Diploneis smithii var. borealis (Grunow) A.Cleve U 
Diploneis smithii (Brébisson) Cleve C 
Diploneis smithii var. recta Peragallo C 
Diploneis smithii var. rhombica Mereschkowsky C 
Diploneis smithii var. aestiva (Donkin) F.W.Mills P 
Diploneis smithii var. pumila (Grunow) Hustedt C 
Diploneis smithii var. constricta Heiden S 
Diploneis smithii var. dilatata (Peragallo) Boyer S 
Diploneis solea S.J.M.Droop C 
Diploneis soninkhishigiae E.Jovanovska, Z.Levkov & M.B.Edlund C 
Diploneis sooi M.Hajós C 
Diploneis spectabilis Metzeltin, Lange-Bertalot & Nergui P 
Diploneis spiralis Kutzing P 
Diploneis splendida Cleve C 
Diploneis splendida var. diplosticta (A.Schmidt) Cleve P 
Diploneis splendida var. elesdiana (Pantocsek) Cleve C 
Diploneis splendida var. haynaldii (Pantocsek) Cleve P 
Diploneis splendida var. porosa A.Jurilj P 
Diploneis splendida var. prominula (A.Schmidt) Cleve P 
Diploneis splendida var. puella (A.Schmidt) Cleve S 
Diploneis stagnarum P.Prudent P 
Diploneis stauroneiformis N.I.Hendey P 
Diploneis stephen-droopii Kuliskovskiy & Lange-Bertalot C 
Diploneis stigmosa Heiden & Kolbe C 
Diploneis stoermeri E.Jovanovska, Z.Levkov & M.B.Edlund C 
Diploneis stroemii Hustedt C 
Diploneis subadvena Hustedt C 
Diploneis subbaicalensis Kuliskovskiy & Lange-Bertalot C 
Diploneis subcincta var. glacialis P.Schulz P 
Diploneis subcincta var. media (Grunow) E.H.Jörgensen P 
Diploneis subcincta (A.W.F.Schmidt) Cleve C 
Diploneis subconstricta f. alpina (Meister) A.Cleve P 
Diploneis subconstricta (A.Cleve) Cleve-Euler C 
Diploneis submeyeri Kuliskovskiy & Lange-Bertalot C 
Diploneis subnuda (A.Schmidt) Cleve P 
Diploneis subnuda var. densestriata (A.Schmidt) Cleve P 
Diploneis suborbicularis var. africana B.J.Cholnoky P 
Diploneis suborbicularis var. antiqua P.Schulz P 
Diploneis suborbicularis var. savensis A.Jurilj P 
Diploneis suborbicularis var. schmidtii H.Heiden P 
Diploneis suborbicularis var. intermedia Cleve-Euler C 
Diploneis suborbicularis (W.Gregory) Cleve C 
Diploneis suborbicularis var. constricta Hustedt C 
Diploneis subovalis Cleve C 
Diploneis subovalis var. baicalensis Skvortzov C 
Diploneis subovalis var. argentina (Frenguelli) Frenguelli P 
Diploneis subovalis var. baikalensis Skvortzov P 
Diploneis subovalis var. cuspidatum C.S.Singh P 
Diploneis subovalis var. jogensis H.P.Gandhi P 
Diploneis subovalis f. novae-zealandiae Skvortzov U 
Diploneis subsmithii H.P.Gandhi C 
Diploneis suezii M.M.Salah & G.Tamás P 
Diploneis suspecta (A.Schmidt) N.I.Hendey P 
Diploneis szontaghii (Pantocsek) Cleve P 
Diploneis taiga Kuliskovskiy & Lange-Bertalot C 
Diploneis tavcarii A.Jurilj C 
Diploneis tenuibipunctata Kuliskovskiy & Lange-Bertalot C 
Diploneis tirolensis Lange-Bertalot & A.Fuhrmann C 
Diploneis toli Kuliskovskiy & Lange-Bertalot C 
Diploneis totarae H.-J.Schrader P 
Diploneis transylvanica Jovanovsk, Buczkó, Nakov & Levkov C 
Diploneis tugelae B.J.Cholnoky P 
Diploneis tundra H.Lange-Bertalot & A.Fuhrmann C 
Diploneis turgida var. bipunctata Skvortzov P 
Diploneis turgida Skv. C 
Diploneis uschkaniensis Kuliskovskiy & Lange-Bertalot C 
Diploneis vacilans (A.Schmidt) Cleve P 
Diploneis vacillans var. delicatula Cleve C 
Diploneis vacillans var. minuta Grunow C 
Diploneis vacillans (A.W.F.Schmidt) Cleve C 
Diploneis vacillans var. renitens (A.Schmidt) Cleve C 
Diploneis vagabunda (J.-J.Brun) Cleve P 
Diploneis vagabunda f. minor J.-J.Brun P 
Diploneis vandermerwei B.J.Cholnoky S 
Diploneis var var. G .Krasske P 
Diploneis vespa Cleve P 
Diploneis vetula var. americana Hustedt P 
Diploneis vetula f. minor A.Jurilj P 
Diploneis vetula (A.W.F.Schmidt) Cleve C 
Diploneis vetusa Jovanovska, Nakov & Levkov P 
Diploneis vetusta E.Jovanovska, T.Nakov & Z.Levkov C 
Diploneis voigtii Manguin P 
Diploneis volsella J.R.Carter & P.Denny P 
Diploneis weissflogii (A.W.F.Schmidt) Cleve C 
Diploneis weretschanginii Kuliskovskiy & Lange-Bertalot C 
Diploneis wolffii Foged P 
Diploneis yamanakaensis M.Idei C 
Diploneis yatukaensis Horikawa & H.Okuno P 
Diploneis zanni var. lenzi Krasske P 
Diploneis zannii Frenguelli P 
Diploneis zanzibarica (Grunow) Hustedt C 
Diploneis zula Kuliskovskiy & Lange-Bertalot C 

References
Hustedt, F. (1930). Bacillariophyta (Diatomeae) Zweite Auflage. In: Die Süsswasser-Flora Mitteleuropas. Heft 10. (Pascher, A. Eds), pp. [i]-vii, [1]-466. Jena: Verlag von Gustav Fischer.

Round, F.E., Crawford, R.M. & Mann, D.G. (1990). The Diatoms: Biology and morphology of the genera. pp. i-xi, 1-747. Cambridge: Cambridge University Press.

Scott, F.J. & Thomas, D.P. (2005). Diatoms. In: Antarctic marine protists. (Scott, F.J. & Marchant, H.J. Eds), pp. 13-201. Canberra & Hobart: Australian Biological Resources Study; Australian Antarctic Division.

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Created: 11 April 2002 by M.D. Guiry

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