150,115 species and infraspecific names are in the database, 20,397 images, 57,748 bibliographic items, 380,813 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.

Numbers of names and species: There are 328 species names in the database at present, of which 200 have been flagged as accepted taxonomically on the basis of the listed literature under the species name. In some instances, opinions on taxonomic validity differ from author to author and users are encouraged to form their own opinion. AlgaeBase is a work in progress and should not be regarded as a definitive source only as a guide to the literature..

Names: ('C' indicates a name that is 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 (J.Brun) Cleve C 
Diploneis advena (A.W.F.Schmidt) Cleve C 
Diploneis aequorea H.Heiden P 
Diploneis aestiva (Donkin) Cleve C 
Diploneis aestuari Hustedt C 
Diploneis aetiopum Ehrenberg P 
Diploneis africana H.Heiden P 
Diploneis alpina Meister C 
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 biremiformis S.J.M.Droop C 
Diploneis biseriata Cleve P 
Diploneis boldtiana Cleve C 
Diploneis bombiformis Cleve S 
Diploneis bomboides (A.W.F.Schmidt) Cleve S 
Diploneis bombus (Ehrenberg) Ehrenberg C 
Diploneis borealis (Grunow) Cleve C 
Diploneis budayana (Pantocsek) A.Jurilj P 
Diploneis burgitensis Prudent C 
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 cerebrum Pennesi, Caputo & Lobban C 
Diploneis chersonensis (Grunow) Cleve C 
Diploneis chilensis (Hustedt) Lange-Bertalot P 
Diploneis chinensis Cleve C 
Diploneis circumnodosa (J.-J.Brun) Cleve P 
Diploneis claustra Lobban & Pennesi C 
Diploneis clepsydra Cleve P 
Diploneis clevei Fontell S 
Diploneis coarctata (Schmidt) Cleve U 
Diploneis coffaeiformis (Schmidt) Cleve C 
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 Skabichevsky [Skabichevskii] C 
Diploneis constricta Cleve C 
Diploneis crabro (Ehrenberg) Ehrenberg C 
Diploneis crassa Missuna S 
Diploneis crassibiseriata Kuliskovskiy & Lange-Bertalot C 
Diploneis craticula Pennesi, Caputo & Lobban C 
Diploneis crispa Pennesi, Caputo & Lobban C 
Diploneis curiosa Metzeltin, Lange-Bertalot & Nergui C 
Diploneis cynthia (A.W.F.Schmidt) Cleve C 
Diploneis dalmatica (Grunow) Cleve C 
Diploneis debyi (Pantocsek) Cleve C 
Diploneis decipiens Cleve-Euler C 
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 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 domblittensis (Grunow) Cleve C 
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 elliptica (Kützing) Cleve C 
Diploneis ellipticolinearis Kuliskovskiy & Lange-Bertalot C 
Diploneis entomon (Ehrenberg) Ehrenberg C 
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 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 var. clevei (C.W.Fontell) Hustedt U 
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. pervasta (Pantocsek) Hustedt C 
Diploneis ganga Kuliskovskiy & Lange-Bertalot C 
Diploneis gemmata (Greville) Cleve C 
Diploneis gemmatula (Grunow) Cleve C 
Diploneis glacialis Ehrenberg P 
Diploneis goohon Kuliskovskiy & Lange-Bertalot C 
Diploneis gorjanovicii (Pantocsek) Hustedt C 
Diploneis gracilis Ehrenberg 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) Z.Cheng & Y.Gao S 
Diploneis hudsonis (Grunow) Cleve S 
Diploneis hustedti F.Meister P 
Diploneis hyalina (Donkin) Cleve C 
Diploneis hyperborea (Grunow) Cleve P 
Diploneis ideii Kuliskovskiy & Lange-Bertalot C 
Diploneis imperialis Ehrenberg P 
Diploneis inaequalis Østrup P 
Diploneis incurvata (Gregory) Cleve C 
Diploneis infernalis Lange-Bertalot & Krammer C 
Diploneis inscripta Cleve C 
Diploneis insolitus M.H.Hohn & J.Hellerman C 
Diploneis interrupta (Kützing) Cleve C 
Diploneis jasnitskii Skabichevsky [Skabichevskii] C 
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 (Grunow) Cleve U 
Diploneis laciniosa (A.Schmidt) Cleve P 
Diploneis lacrimans (Schmidt in Schmidt & al.)Hustedt P 
Diploneis lacus-lemani J.Brun S 
Diploneis ladogensis (Cleve) Lange-Bertalot & Fuhrmann C 
Diploneis lata Skvortzov S 
Diploneis late-elliptica Skabichevsky [Skabichevskii] C 
Diploneis latefurcata (C.W.Fontell) A.Cleve C 
Diploneis lesinensis Grunow P 
Diploneis letourneuri Cleve P 
Diploneis levicostata Jousé C 
Diploneis lijiangensis Huang C 
Diploneis linearielliptica Metzeltin, Lange-Bertalot & Nergui C 
Diploneis linearifera M.Idei C 
Diploneis linearis Otto Müller S 
Diploneis lineata (Donkin) Cleve C 
Diploneis littoralis (Donkin) Cleve C 
Diploneis lusatica H.Lange-Bertalot & A.Fuhrmann C 
Diploneis maeandra A.Cleve P 
Diploneis major Cleve C 
Diploneis manguinii P.Fusey P 
Diploneis marginestriata Hustedt C 
Diploneis mauleri (Brun) Cleve C 
Diploneis maulerii (Brun) Cleve P 
Diploneis mediterranea (Grunow) Cleve C 
Diploneis mesolia Ehrenberg P 
Diploneis metzeltinii Kuliskovskiy & Lange-Bertalot C 
Diploneis meyeri Skabichevsky [Skabichevskii] C 
Diploneis meyeri Skvortzov S 
Diploneis microtatos (Pantocsek) Cleve P 
Diploneis minima Hustedt P 
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 nanofontanella H.Lange-Bertalot & A.Fuhrmann C 
Diploneis nanometzeltinii Kuliskovskiy & Lange-Bertalot C 
Diploneis natalensis B.J.Cholnoky P 
Diploneis nitescens (W.Gregory) Cleve C 
Diploneis nitidula J.-J.Brun P 
Diploneis nonelliptica Kuliskovskiy & Lange-Bertalot C 
Diploneis notabilis (Greville) Cleve C 
Diploneis notata Østrup P 
Diploneis novaeseelandiae (A.Schmidt) Hustedt C 
Diploneis oamaruensis (Cleve) Mills P 
Diploneis obliqua (Brun) Hustedt C 
Diploneis oblongella (Nägeli ex Kützing) 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 oestrupii Hustedt C 
Diploneis okhapkinii Kuliskovskiy & Lange-Bertalot C 
Diploneis omearae (Grunow) Grunow P 
Diploneis ordines Kuliskovskiy & Lange-Bertalot C 
Diploneis ornata (A.Schmidt) Cleve P 
Diploneis ostracodarum (Pantocsek) A.Jurilj C 
Diploneis ostrobottnica A.Cleve P 
Diploneis ovalis (Hilse) Cleve C 
Diploneis pantocsekii A.Cleve C 
Diploneis papula (A.W.F.Schmidt) Cleve 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 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 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 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 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 (Grunow) Heiden S 
Diploneis reticulata A.Jurilj P 
Diploneis rex S.J.M.Droop C 
Diploneis rhombica Skabichevsky [Skabichevskii] C 
Diploneis rhombus Ehrenberg P 
Diploneis rimosa Pennesi & Caputo C 
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.W.F.Schmidt) E.Jørgensen C 
Diploneis separanda Lange-Bertalot C 
Diploneis serratula (Grunow) Hustedt C 
Diploneis sharbin Kuliskovskiy & Lange-Bertalot C 
Diploneis skvortzovii Skabichevsky [Skabichevskii] C 
Diploneis skvortzowii Skabichevskij C 
Diploneis smithii (Brébisson) Cleve C 
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 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 (A.W.F.Schmidt) Cleve C 
Diploneis subconstricta (A.Cleve) Cleve-Euler C 
Diploneis submeyeri Kuliskovskiy & Lange-Bertalot C 
Diploneis subnuda (A.Schmidt) Cleve P 
Diploneis suborbicularis (W.Gregory) Cleve C 
Diploneis subovalis Cleve C 
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 taschenbergeri (A.W.F.Schmidt) Hustedt 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 Skvortzov C 
Diploneis uschkaniensis Kuliskovskiy & Lange-Bertalot C 
Diploneis vacilans (A.Schmidt) Cleve P 
Diploneis vacillans (A.W.F.Schmidt) Cleve C 
Diploneis vagabunda (J.-J.Brun) Cleve P 
Diploneis vandermerwei B.J.Cholnoky S 
Diploneis vespa Cleve 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 weissflogiopsis Lobban & Pennesi C 
Diploneis weretschanginii Kuliskovskiy & Lange-Bertalot C 
Diploneis wolffii Foged P 
Diploneis yamanakaensis M.Idei C 
Diploneis yatukaensis Horikawa & H.Okuno 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-ix], 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.

Verification of data
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Created: 11 April 2002 by M.D. Guiry

Verified by: 27 January 2017 by M.D. Guiry

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M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2017. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 16 December 2017.

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