Home
Practitioners
Morphology
All Morphological Groups
Centric
Araphid
Eunotioid
Symmetric Biraphid
Monoraphid
Asymmetric Biraphid
Epithemioid
Nitzschioid
Surirelloid
Genera
Species
Glossary
About Us
About
News
Projects
Review Board
Taxon Contributors
Contact Us
What are diatoms?
Search
×
Diatoms of North America
Practitioners
Morphology
Centric
Araphid
Eunotioid
Symmetric Biraphid
Monoraphid
Asymmetric Biraphid
Epithemioid
Nitzschioid
Surirelloid
Genera
Species
Glossary
About Us
News
Projects
Review Board
Taxon Contributors
Contact Us
What are diatoms?
Search taxa, citations, glossary, contributors, and images
Submit
Close search
Species
Filters
Size Range,
µm
3
11-100
101-1000
1001-10000
10001-100000
100001-1000000
Length/Diameter,
µm
Width,
µm
Stria density
per 10 μm, near center
Motility
Non-motile
Weakly motile
Slightly motile
Moderately motile
Highly motile
Attachment
Unattached
Prostrate
Tube-Forming
Vertical
Habitat
Soils
Moist habitats
Benthic
Planktonic
Milieu
Rivers
Lakes
Wetlands
Springs
Splash zones
Estuaries
Neritic
Sea Ice
Colony
Solitary
Colonies occasional
Colonies common
Biological Condition Gradient
BCG 1
BCG 2
BCG 3
BCG 4
BCG 5
Distribution
Western rivers 2004
Southeast rivers 2014
Northeast rivers 2016
Northwest rivers 2015
California coastal rivers 2017
Northeast lake sediments
Nat. Eco. Obs. Network (NEON)
Great Lakes inventory
Nitrogen Fixer
Nitrogen Fixer
Rare
Rare
Extinct
Extinct
Filters
1107
Species completed to date
GC
Genus Considered
Waterbody
All
Inland
Marine
Sort
Name
Ascending
Download CSV table of these results
Acanthoceras
Acanthoceras zachariasii
Achnanthes
Achnanthes mauiensis
Achnanthes tumescens
Achnanthes undulorostrata
Achnanthes felinophila
Achnanthes longboardia
Achnanthes inflata
Achnanthes coarctata
Achnanthidium
Achnanthidium rosenstockii
Achnanthidium subhudsonis var. kraeuselii
Achnanthidium laticephalum
Achnanthidium pyrenaicum
Achnanthidium eutrophilum
Achnanthidium reimeri
Achnanthidium crassum
Achnanthidium kranzii
Achnanthidium alpestre
Achnanthidium minutissimum
Achnanthidium atomus
Achnanthidium gracillimum
Achnanthidium delmontii
Achnanthidium rivulare
Achnanthidium druartii
Achnanthidium deflexum
Achnanthidium duthiei
Actinella
Actinella punctata
Actinocyclus
Actinocyclus normanii
Adlafia
Adlafia multnomahii
Adlafia suchlandtii
Adlafia detenta
Amicula
Amicula vermiculata
Amphipleura
Amphipleura pellucida
Amphora
Amphora pediculus
Amphora minutissima
Amphora copulata
Amphora delphinea var. minor
Amphora calumetica
Amphora ovalis
Amphora bicapitata
GC
Aneumastus
Aneumastus minor
Aneumastus pseudotusculus
Aneumastus carolinianus
Aneumastus rostratus
Aneumastus tusculus
Anomoeoneis
Anomoeoneis capitata
Anomoeoneis fogedii
Anomoeoneis monoensis
Anomoeoneis sphaerophora f. rostrata
Anomoeoneis sphaerophora
Anomoeoneis costata
Anomoeoneis sculpta
Asterionella
Asterionella formosa
Asterionella ralfsii var. americana
Aulacoseira
Aulacoseira granulata var. angustissima
Aulacoseira herzogii
Aulacoseira pusilla
Aulacoseira tenella
Aulacoseira humilis
Aulacoseira nivaloides
Aulacoseira nygaardii
Aulacoseira ambigua
Aulacoseira crassipunctata
Aulacoseira subarctica
Aulacoseira alpigena
Aulacoseira canadensis
Aulacoseira valida
Aulacoseira newjerseyana
Aulacoseira granulata
Aulacoseira nivalis
Aulacoseira islandica
Aulacoseira lirata
Aulacoseira italica
Aulacoseira muzzanensis
Bacillaria
Bacillaria paxillifera
Biremis
Biremis undulata
Biremis circumtexta
Boreozonacola
Boreozonacola hustedtii
Boreozonacola olympica
Brachysira
Brachysira zellensis
Brachysira vitrea
Brachysira microcephala
Brachysira subtilis
Brachysira confusa
Brachysira brebissonii
Brachysira styriaca
Brachysira ocalanensis
Brachysira arctoborealis
Brachysira follis
Brachysira neoacuta
Brachysira hannae
Brachysira serians
Brebissonia
Brebissonia lanceolata
Caloneis
Caloneis bacillum
Caloneis fusus
Caloneis lewisii
Caloneis silicula
Caloneis amphisbaena
Campylodiscus
Campylodiscus clypeus
Capartogramma
Capartogramma crucicula
Caponea
Caponea caribbea
Cavinula
Cavinula pseudoscutiformis
Cavinula vincentii
Cavinula jaernefeltii
Cavinula lapidosa
Cavinula pusio
Cavinula scutelloides
Cavinula cocconeiformis
Cavinula davisiae
Cavinula variostriata
Cavinula scutiformis
Cavinula maculata
Chaetoceros
Chaetoceros muelleri
Chaetoceros lauderi
Chamaepinnularia
Chamaepinnularia hassiaca
Chamaepinnularia soehrensis
Chamaepinnularia mediocris
Chamaepinnularia krasskei
Chamaepinnularia witkowskii
Chamaepinnularia gandrupii
Chamaepinnularia krookii
Cocconeis
Cocconeis pseudothumensis
Cocconeis neodiminuta
Cocconeis fluviatilis
Cocconeis cascadensis
Cocconeis pediculus
Cocconeis klamathensis
Cocconeis czarneckii
Cocconeis coreana
Cocconeis rugosa
Cocconeis placentula
Cocconeis grovei
Cosmioneis
Cosmioneis citriformis
Cosmioneis hawaiiensis
Cosmioneis reimeri
Craticula
Craticula subminuscula
Craticula molestiformis
Craticula citrus
Craticula accomoda
Craticula accomodiformis
Craticula riparia
Craticula buderi
Craticula halophila
Craticula ambigua
Craticula johnstoniae
Craticula sardiniana
Craticula cuspidata
Craticula coloradensis
Craticula acidoclinata
Craticula pampeana
Ctenophora
Ctenophora pulchella
Cyclostephanos
Cyclostephanos invisitatus
Cyclostephanos tholiformis
Cyclostephanos dubius
Cyclotella
Cyclotella atomus
Cyclotella distinguenda
Cyclotella kingstonii
Cyclotella quillensis
Cylindrotheca
Cylindrotheca gracilis
Cymbella
Cymbella cosleyi
Cymbella excisiformis
Cymbella laevis
Cymbella affiniformis
Cymbella affinis
Cymbella subleptoceros
Cymbella parva
Cymbella tropica
Cymbella hustedtii
Cymbella neoleptoceros
Cymbella cleve-eulerae
Cymbella turgidula
Cymbella hantzschiana
Cymbella blinnii
Cymbella rumrichiae
Cymbella subturgidula
Cymbella vulgata
Cymbella stigmaphora
Cymbella alpestris
Cymbella tumida
Cymbella proxima fo. gravida
Cymbella maggiana
Cymbella compacta
Cymbella neocistula
Cymbella fontinalis
Cymbella mexicana var. kamtschatica
Cymbella proxima
Cymbella neocistula var. islandica
Cymbella cymbiformis
Cymbella amplificata
Cymbella perfossilis
Cymbella mexicana
Cymbella aspera
Cymbella lanceolata
Cymbella janischii
Cymbella designata
GC
Cymbellafalsa
Cymbellafalsa diluviana
Cymbellonitzschia
Cymbellonitzschia diluviana
Cymbopleura
Cymbopleura amphicephala
Cymbopleura naviculiformis
Cymbopleura angustata
Cymbopleura fluminea
Cymbopleura frequens
Cymbopleura oblongata
Cymbopleura incertiformis var. laterostrata
Cymbopleura maggieae
Cymbopleura subaequalis
Cymbopleura lapponica
Cymbopleura rupicola
Cymbopleura hybrida
Cymbopleura elliptica
Cymbopleura sublanceolata
Cymbopleura anglica
Cymbopleura laszlorum
Cymbopleura incertiformis var. linearis
Cymbopleura incerta
Cymbopleura incertiformis
Cymbopleura metzeltinii
Cymbopleura florentina
Cymbopleura stauroneiformis
Cymbopleura rainierensis
Cymbopleura tynnii
Cymbopleura apiculata
Cymbopleura edlundii
Cymbopleura lata
Cymbopleura austriaca
Cymbopleura subcuspidata
Cymbopleura perprocera
Cymbopleura crassipunctata
Cymbopleura inaequalis
Cymbopleura heinii
Cymbopleura subrostrata
Decussata
Decussata placenta
Delicatophycus
Delicatophycus tundraphilus
Delicatophycus canadensis
Delicatophycus montana
Delicatophycus delicatulus
Delicatophycus alpestris
Denticula
Denticula creticola
Denticula tenuis
Denticula subtilis
Denticula kuetzingii
Diadesmis
Diadesmis confervacea
Diatoma
Diatoma moniliformis
Diatoma vulgaris
Diatoma tenuis
Diatoma ehrenbergii
Diatomella
Diatomella balfouriana
Didymosphenia
Didymosphenia geminata
Diploneis
Diploneis puella
Diploneis puellafallax
Diploneis submarginestriata
Diploneis potapovae
Diploneis calcicolafrequens
Diploneis texana
Diploneis parma
Diploneis calcilacustris
Diploneis galloprovincialis
Diploneis boldtiana
Diploneis abscondita
Diploneis doncharlesii
Diploneis krammeri
Diploneis ovalis
Diploneis mollenhaueri
Diploneis elliptica
Diploneis finnica
Diprora
Diprora haenaensis
Discostella
Discostella pseudostelligera
Discostella lacuskarluki
Discostella stelligera
Discostella asterocostata
Distrionella
Distrionella incognita
Ellerbeckia
Ellerbeckia arenaria
Encyonema
Encyonema reichardtii
Encyonema montanum
Encyonema obscurum
Encyonema minutum
Encyonema hamsherae
Encyonema lange-bertalotii
Encyonema auerswaldii
Encyonema appalachianum
Encyonema procerum
Encyonema paucistriatum
Encyonema lunatum
Encyonema neogracile
Encyonema norvegicum
Encyonema pergracile
Encyonema silesiacum
Encyonema silesiacum var. elegans
Encyonema kamtschaticum var. parvum
Encyonema sibericum
Encyonema minutum var. pseudogracilis
Encyonema hebridicum
Encyonema leibleinii
Encyonema triangulum
Encyonema yellowstonianum
Encyonema nicafei
Encyonema temperei
Encyonema latum
Encyonema sinicum
Encyonema reimeri
Encyonema evergladianum
GC
Encyonopsis
Encyonopsis lacusalpini
Encyonopsis minuta
Encyonopsis alpina
Encyonopsis subminuta
Encyonopsis microcephala
Encyonopsis thumensis
Encyonopsis perborealis
Encyonopsis bobmarshallensis
Encyonopsis hustedtii
Encyonopsis robusta
Encyonopsis krammeri
Encyonopsis kutenaiorum
Encyonopsis medicinalis
Encyonopsis albertana
Encyonopsis anacondae
Encyonopsis neerlandica
Encyonopsis descripta
Encyonopsis czarneckii
Encyonopsis dakotae
Encyonopsis descriptiformis
Encyonopsis falaisensis
Encyonopsis cesatii
Encyonopsis cesatiformis
Encyonopsis stafsholtii
Encyonopsis lacuscaerulei
Encyonopsis montana
Encyonopsis aequaliformis
GC
Entomoneis
Entomoneis punctulata
Entomoneis paludosa
Entomoneis ornata
Entomoneis alata
Envekadea
Envekadea pachycephala
Envekadea vanlandinghamii
Envekadea metzeltinii
Eolimna
Eolimna metafarta
Eolimna aboensis
Epithemia
Epithemia sorex
Epithemia reicheltii
Epithemia gibberula
Epithemia musculus
Epithemia adnata
Epithemia alpestris
Epithemia argus
Epithemia smithii
Epithemia turgida
Epithemia gibba
Eucocconeis
Eucocconeis laevis
Eucocconeis depressa
Eucocconeis alpestris
Eucocconeis americana
Eucocconeis flexella
Eunotia
Eunotia microcephala
Eunotia enischna
Eunotia orthohedra
Eunotia perpusilla
Eunotia cataractarum
Eunotia exigua
Eunotia trinacria
Eunotia rhomboidea
Eunotia rushforthii
Eunotia tecta
Eunotia horstii
Eunotia subherkiniensis
Eunotia tenella
Eunotia bidentula
Eunotia canicula
Eunotia papilioforma
Eunotia gibbosa
Eunotia bactriana
Eunotia sudetica
Eunotia boomsma
Eunotia nymanniana
Eunotia paludosa
Eunotia hexaglyphis
Eunotia bilii
Eunotia incisa
Eunotia tetraodon
Eunotia mucophila
Eunotia kociolekii
Eunotia novaeangliae
Eunotia obliquestriata
Eunotia faba
Eunotia areniverma
Eunotia montuosa
Eunotia richbuttensis
Eunotia bidens
Eunotia zasuminensis
Eunotia mydohaimasiae
Eunotia diadema
Eunotia sarraceniae
Eunotia charliereimeri
Eunotia triodon
Eunotia pectinalis
Eunotia macroglossa
Eunotia panda
Eunotia lewisii
Eunotia bilunaris
Eunotia superbidens
Eunotia pseudoparallela
Eunotia serra
Eunotia formica
Eunotia naegelii
Eunotia metamonodon
Eunotia spatulata
Eunotia tauntonensis
Eunotia eruca
GC
Eupodiscus
Eupodiscus radiatus
Fallacia
Fallacia californica
Fallacia tenera
Fallacia subhamulata
Fallacia vitrea
Fallacia hummii
Fallacia latelongitudinalis
Fallacia pygmaea
Fragilaria
Fragilaria pennsylvanica
Fragilaria recapitellata
Fragilaria vaucheriae
Fragilaria socia
Fragilaria mesolepta
Fragilaria cyclopum
Fragilaria amphicephaloides
Fragilaria crotonensis
Fragilaria tenera
Fragilaria synegrotesca
Fragilariforma
Fragilariforma horstii
Fragilariforma marylandica
Fragilariforma polygonata
Fragilariforma constricta
Fragilariforma bicapitata
Fragilariforma nitzschioides
Fragilariforma virescens
Fragilariforma acidobiontica
Frickea
Frickea lewisiana
Frustulia
Frustulia creuzburgensis
Frustulia capitata
Frustulia neomundana
Frustulia pseudomagaliesmontana
Frustulia crassinervia
Frustulia latita
Frustulia asiatica
Frustulia soror
Frustulia vulgaris
Frustulia amosseana
Frustulia quadrisinuata
Frustulia inculta
Frustulia saxonica
Frustulia amphipleuroides
Frustulia rexii
Frustulia esandalliae
Frustulia krammeri
Frustulia bahlsii
Geissleria
Geissleria acceptata
Geissleria ignota
Geissleria declivis
Geissleria cascadensis
Geissleria kriegeri
Geissleria lateropunctata
Geissleria punctifera
Geissleria decussis
Genkalia
Genkalia digitulus
Gliwiczia
Gliwiczia calcar
Gogorevia
Gogorevia exilis
Gogorevia rostellata
Gomphoneis
Gomphoneis eriense var. variabilis
Gomphoneis eriensis var. apiculata
Gomphoneis eriensis
Gomphoneis eriensis var. angularis
Gomphoneis trullata
Gomphoneis septa
Gomphoneis oreophila
Gomphoneis minuta
Gomphoneis herculeana var. lowei
Gomphoneis herculeana var. abundans
Gomphoneis herculeana
Gomphoneis mammilla
Gomphonella
Gomphonella hutchinsoniana
Gomphonella pseudookunoi
Gomphonella fogedii
Gomphonella olivacea
Gomphonema
Gomphonema montezumense
Gomphonema consector
Gomphonema variostriatum
Gomphonema superiorense
Gomphonema lagenula
Gomphonema incognitum
Gomphonema kobayasii
Gomphonema sierranum
Gomphonema caperatum
Gomphonema duplipunctatum
Gomphonema submehleri
Gomphonema sarcophagus
Gomphonema louisiananum
Gomphonema manubrium
Gomphonema gibba
Gomphonema pygmaeum
Gomphonema insularum
Gomphonema apuncto
Gomphonema germainii
Gomphonema stoermeri
Gomphonema distans
Gomphonema ventricosum
Gomphonema brebissonii
Gomphonema turgidum
Gomphonema nathorstii
Gomphonema johnsonii
Gomphonema pseudosphaerophorum
Gomphonema apicatum
Gomphonema freesei
Gomphonema americobtusatum
Gomphonema mexicanum
Gomphonema sphaerophorum
Gomphonema pusillum
Gomphonema christensenii
Gomphonema mehleri
Gomphonema amerhombicum
Gomphonema truncatum
Gomphonema californicum
Gomphonema reimeri
Gomphonema acuminatum
Gomphonema eileencoxiae
Gomphonema elongatum
Gomphonema coronatum
Gomphonema semiapertum
Gomphonema vibrioides
Gomphosinica
Gomphosinica geitleri
Gomphosphenia
Gomphosphenia stoermeri
Gomphosphenia lingulatiformis
Gomphosphenia grovei
Grunowia
Grunowia solgensis
Grunowia tabellaria
Grunowia sinuata
Gyrosigma
Gyrosigma obscurum
Gyrosigma acuminatum
Gyrosigma obtusatum
Gyrosigma attenuatum
Halamphora
Halamphora thumensis
Halamphora subtilis
Halamphora montana
Halamphora normanii
Halamphora oligotraphenta
Halamphora coffeiformis
Halamphora veneta
Halamphora latecostata
Halamphora elongata
Hannaea
Hannaea arcus
Hannaea superiorensis
Hantzschia
Hantzschia amphioxys
Hippodonta
Hippodonta pseudacceptata
Hippodonta coxiae
Hippodonta gravistriata
Hippodonta capitata subsp. iberoamericana
Hippodonta hungarica
Hippodonta capitata
Humidophila
Humidophila schmassmannii
Humidophila undulata
Humidophila contenta
Humidophila perpusilla
Humidophila pantropica
Hydrosera
Hydrosera whampoensis
Hygropetra
Hygropetra balfouriana
Iconella
Iconella hibernica
Iconella tenera
Iconella bifrons
Iconella guatimalensis
Karayevia
Karayevia amoena
Karayevia nitidiformis
Karayevia suchlandtii
Karayevia laterostrata
Karayevia ploenensis var. gessneri
Karayevia clevei
Kobayasiella
Kobayasiella micropunctata
Kobayasiella subtilissima
Kobayasiella jaagii
Kobayasiella madumensis
Kobayasiella okadae
Kobayasiella parasubtilissima
Krasskella
Krasskella kriegeriana
Kurtkrammeria
Kurtkrammeria aequalis
Kurtkrammeria neoamphioxys
Kurtkrammeria stodderi
Kurtkrammeria weilandii
Kurtkrammeria subspicula
Kurtkrammeria lacusglacialis
Kurtkrammeria treinishii
Lacustriella
Lacustriella lacustris
Lemnicola
Lemnicola hungarica
Lindavia
Lindavia delicatula
Lindavia comensis
Lindavia michiganiana
Lindavia ocellata
Lindavia praetermissa
Lindavia rossii
Lindavia radiosa
Lindavia antiqua
Lindavia affinis
Lindavia intermedia
Lindavia bodanica
Lindavia eriensis
Luticola
Luticola ventricosa
Luticola ignorata
Luticola arctica
Luticola goeppertiana
Luticola stigma
Luticola hamiltonii
Luticola minor
Luticola mobiliensis
Mastogloia
Mastogloia binotata
Mastogloia taralunae
Mastogloia grevillei
Mastogloia lucayensis
Mastogloia albertii
Mastogloia pumila
Mastogloia pseudosmithii
Mastogloia calcarea
Mastogloia lacustris
Mastogloia elliptica
Mastogloia floridensis
Mayamaea
Mayamaea cahabaensis
Melosira
Melosira dickiei
Melosira varians
Melosira normannii
Melosira undulata
Meridion
Meridion lineare
Meridion circulare var. constrictum
Meridion anceps
Meridion circulare
Meridion alansmithii
Microcostatus
Microcostatus krasskei
Muelleria
Muelleria gibbula
Muelleria tetonensis
Muelleria agnellus
Muelleria spauldingiae
Nanofrustulum
Nanofrustulum cataractarum
Navicula
Navicula ingenua
Navicula goersii
Navicula vilaplanii
Navicula kotschyi
Navicula caterva
Navicula longicephala
Navicula metareichardtiana
Navicula antonii
Navicula canalis
Navicula veneta
Navicula trilatera
Navicula eileeniae
Navicula cincta
Navicula seibigiana
Navicula subrostellata
Navicula supleeorum
Navicula cryptofallax
Navicula staffordiae
Navicula cryptocephala
Navicula symmetrica
Navicula gregaria
Navicula libonensis
Navicula salinarum
Navicula aitchelbee
Navicula erifuga
Navicula capitatoradiata
Navicula lundii
Navicula elsoniana
Navicula germainii
Navicula leptostriata
Navicula notha
Navicula caroliniae
Navicula oppugnata
Navicula rostellata
Navicula recens
Navicula subrhynchocephala
Navicula trivialis
Navicula reinhardtii
Navicula perotii
Navicula escambia
Navicula schweigeri
Navicula wildii
Navicula geronimensis
Navicula cari
Navicula duerrenbergiana
Navicula winonae
Navicula rhynchocephala
Navicula cryptocephaloides
Navicula rhynchotella
Navicula subconcentrica
Navicula weberi
Navicula pseudolanceolata
Navicula lanceolata
Navicula streckerae
Navicula tripunctata
Navicula vaneei
Navicula whitefishensis
Navicula harmoniae
Navicula margalithii
Navicula viridulacalcis subsp. neomundana
Navicula slesvicensis
Navicula angusta
Navicula venerablis
Navicula viridula
Navicula peregrinopsis
Navicula flatheadensis
Navicula piercei
Navicula freesei
Navicula hasta
Navicula sovereignii
Navicula radiosa
Navicula vulpina
Navicula galloae
Navicula peregrina
Navicula aurora
Navicula walkeri
Navicula ludloviana
Navicula subwalkeri
Navicula oblonga
Navicula volcanica
Navicula hodgeana
GC
Navicula genovefae
GC
Navicula nunivakiana
GC
Navicymbula
Navicymbula pusilla
Neidiomorpha
Neidiomorpha binodiformis
Neidiopsis
Neidiopsis hamiltonii
Neidiopsis levanderi
Neidiopsis wulffii
Neidiopsis weilandii
Neidium
Neidium densestriatum
Neidium pseudodensestriatum
Neidium hercynicum
Neidium fogedii
Neidium distinctepunctatum
Neidium bobmarshallense
Neidium bisulcatum
Neidium hitchcockii
Neidium sacoense
Neidium undulatum
Neidium fossum
Neidium amphigomphus
Neidium dilatatum
Neidium iridis
Ninastrelnikovia
Ninastrelnikovia gibbosa
Nitzschia
Nitzschia inconspicua
Nitzschia innominata
Nitzschia microcephala
Nitzschia fonticoloides
Nitzschia soratensis
Nitzschia perminuta
Nitzschia alpina
Nitzschia liebethruthii
Nitzschia desertorum
Nitzschia semirobusta
Nitzschia valdecostata
Nitzschia palea var. debilis
Nitzschia acidoclinata
Nitzschia minuta
Nitzschia palea var. tenuirostris
Nitzschia amphibia
Nitzschia communis
Nitzschia oregona
Nitzschia palea
Nitzschia oligotraphenta
Nitzschia incognita
Nitzschia sociabilis
Nitzschia paleacea
Nitzschia brevissima
Nitzschia fonticola
Nitzschia balcanica
Nitzschia exilis
Nitzschia biacrula
Nitzschia clausii
Nitzschia columbiana
Nitzschia dissipata
Nitzschia reversa
Nitzschia recta
Nitzschia angustata
Nitzschia kurzeana
Nitzschia acicularis
Nitzschia regula var. robusta
Nitzschia serpentiraphe
Nitzschia filiformis
Nitzschia linearis
Nitzschia sigma
Nitzschia sigmoidea
Nitzschia siliqua
GC
Nupela
Nupela carolina
Nupela neglecta
Nupela scissura
Nupela vitiosa
Nupela wellneri
Nupela tenuicephala
Nupela impexiformis
Nupela fennica
Nupela decipiens
Nupela potapovae
Nupela elegantula
Nupela pennsylvanica
Nupela lapidosa
Nupela poconoensis
Nupela frezelii
Nupela subrostrata
Odontidium
Odontidium mesodon
Odontidium hyemale
Orthoseira
Orthoseira oregoniana
Orthoseira roeseana
Oxyneis
Oxyneis binalis var. elliptica
Oxyneis binalis
Peronia
Peronia fibula
Pinnularia
Pinnularia marchica
Pinnularia pluvianiformis
Pinnularia bigibba
Pinnularia subanglica
Pinnularia saprophila
Pinnularia divergentissima
Pinnularia borealis
Pinnularia gibbiformis
Pinnularia birnirkiana
Pinnularia subcapitata var. elongata
Pinnularia borealis var. lanceolata
Pinnularia brebissonii
Pinnularia nodosa
Pinnularia nodosa var. percapitata
Pinnularia rabenhorstii
Pinnularia scotica
Pinnularia wisconsinensis
Pinnularia subgibba var. lanceolata
Pinnularia brauniana
Pinnularia rhombarea
Pinnularia suchlandtii
Pinnularia feremorosa
Pinnularia lailaensis
Pinnularia subgibba var. sublinearis
Pinnularia polyonca var. stidolphii
Pinnularia microstauron
Pinnularia acrosphaeria
Pinnularia subgibba var. undulata
Pinnularia undula
Pinnularia parvulissima
Pinnularia turgidula
Pinnularia decrescens
Pinnularia turfosiphila
Pinnularia lokana
Pinnularia cardinaliculus
Pinnularia macilenta
Pinnularia socialis
Pinnularia lata
Pinnularia cuneicephala
Pinnularia kwacksii
Pinnularia undula var. major
Pinnularia clericii
Pinnularia formica
Pinnularia subgibba
Pinnularia streptoraphe
Pinnularia rexlowei
Pinnularia bihastata
Pinnularia spinifera
Pinnularia transversa
Pinnularia pulchella var. canadensis
Pinnularia torta
Pinnularia pulchella
Pinnularia nobilis var. regularis
Pinnularia dariana
Pinnularia gigas
Pinnularia ectorii
Pinnularia alabamae
Pinnunavis
Pinnunavis elegans
Placoneis
Placoneis anglophila
Placoneis explanata
Placoneis abiskoensis
Placoneis gastrum
Placoneis amphibola
Plagiotropis
Plagiotropis lepidoptera var. proboscidea
Plagiotropis arizonica
Planothidium
Planothidium rostratoholarcticum
Planothidium frequentissimum
Planothidium potapovae
Planothidium abbreviatum
Planothidium delicatulum
Planothidium reichardtii
Planothidium incuriatum
Planothidium lanceolatum
Planothidium amphibium
Planothidium biporomum
Planothidium holstii
Planothidium sheathii
Planothidium apiculatum
Planothidium lanceolatoides
Planothidium joursacense
GC
Platessa
Platessa bahlsii
Platessa kingstonii
Platessa hustedtii
Platessa stewartii
Platessa lutheri
Platessa conspicua
Platessa oblongella
Platessa strelnikovae
Playaensis
Playaensis circumfimbria
Pleurosigma
Pleurosigma inflatum
Pleurosigma delicatulum
Pleurosira
Pleurosira laevis
Prestauroneis
Prestauroneis protracta
Prestauroneis integra
Proschkinia
Proschkinia browderiana
Psammothidium
Psammothidium microscopicum
Psammothidium didymum
Psammothidium semiapertum
Psammothidium levanderi
Psammothidium rossii
Psammothidium subatomoides
Psammothidium scoticum
Psammothidium pennsylvanicum
Psammothidium sacculus
Psammothidium lauenburgianum
Psammothidium nivale
Psammothidium acidoclinatum
Psammothidium chlidanos
Psammothidium daonense
Psammothidium bioretii
Psammothidium helveticum
Psammothidium lacustre
Psammothidium harveyi
Psammothidium alpinum
Psammothidium obliquum
Pseudofallacia
Pseudofallacia monoculata
Pseudostaurosira
Pseudostaurosira trainorii
Pseudostaurosira elliptica
Pseudostaurosira neoelliptica
Pseudostaurosira microstriata
Pseudostaurosira pseudoconstruens
Pseudostaurosira robusta
Pseudostaurosira parasitica
Pseudostaurosira brevistriata
Pseudostaurosira americana
Pulchellophycus
Pulchellophycus schwabei
Punctastriata
Punctastriata mimetica
Reimeria
Reimeria sinuata
Reimeria sinuata f. antiqua
Reimeria uniseriata
Rexlowea
Rexlowea navicularis
Rhoicosphenia
Rhoicosphenia californica
Rhoicosphenia abbreviata
Rhoicosphenia stoermeri
Rossithidium
Rossithidium nodosum
Rossithidium pusillum
Rossithidium petersenii
Rossithidium kriegeri
Rossithidium anastasiae
Scoliopleura
Scoliopleura peisonis
Sellaphora
Sellaphora saugerresii
Sellaphora nigri
Sellaphora pulchra
Sellaphora schadei
Sellaphora atomoides
Sellaphora subfasciata
Sellaphora javanica
Sellaphora stroemii
Sellaphora subbacillum
Sellaphora japonica
Sellaphora wallacei
Sellaphora disjuncta
Sellaphora stauroneioides
Sellaphora meridionalis
Sellaphora auldreekie
Sellaphora rexii
Sellaphora bacilloides
Sellaphora californica
Sellaphora bacillum
Sellaphora fusticulus
Sellaphora hohnii
Sellaphora laevissima
Sellaphora alastos
Sellaphora americana
Sellaphora moesta
Seminavis
Seminavis eulensteinii
Semiorbis
Semiorbis hemicyclus
Semiorbis catillifera
Semiorbis eliasiae
Semiorbis rotundus
Simonsenia
Simonsenia delognei
Skabitschewskia
Skabitschewskia oestrupii
Skabitschewskia peragalloi
Stauroforma
Stauroforma exiguiformis
Stauroneis
Stauroneis separanda
Stauroneis thermicola
Stauroneis kriegeri
Stauroneis bovbjergii
Stauroneis agrestis
Stauroneis smithii
Stauroneis smithii var. incisa
Stauroneis livingstonii
Stauroneis pseudagrestis
Stauroneis neohyalina
Stauroneis lauenburgiana
Stauroneis boyntoniae
Stauroneis kootenai
Stauroneis reichardtii
Stauroneis bryocola
Stauroneis acidoclinatopsis
Stauroneis pikuni
Stauroneis schroederi
Stauroneis siberica
Stauroneis acidoclinata
Stauroneis ancepsfallax
Stauroneis vandevijveri
Stauroneis absaroka
Stauroneis anceps
Stauroneis sacajaweae
Stauroneis amphicephala
Stauroneis pax
Stauroneis stodderi
Stauroneis fluminopsis
Stauroneis conspicua
Stauroneis thompsonii
Stauroneis angustilancea
Stauroneis staurolineata
Stauroneis gracilis
Stauroneis beeskovea
Stauroneis baconiana
Stauroneis akamina
Stauroneis subborealis
Stauroneis circumborealis
Stauroneis superkuelbsii
Stauroneis alabamae
Stauroneis acuta
Stauroneis sonyae
Stauroneis kishinena
Stauroneis submarginalis
Stauroneis kingstonii
Stauroneis heinii
Stauroneis phoenicenteron
Stauroneis supergracilis
Stauroneis americana
Stauroneis finlandia
Stauroneis rex
Stauroneis terryi
Staurophora
Staurophora tackei
Staurophora soodensis
Staurophora wislouchii
Staurophora brantii
Staurophora columbiana
Staurophora amphioxys
Staurosira
Staurosira construens
Staurosira binodis
Staurosira stevensonii
Staurosira construens var. venter
Staurosirella
Staurosirella pinnata
Staurosirella berolinensis
Staurosirella martyi
Staurosirella leptostauron
Staurosirella neopinnata
Staurosirella leptostauron var. dubia
Staurosirella rhomboides
Stephanocyclus
Stephanocyclus meneghinianus
Stephanocyclus gamma
Stephanodiscus
Stephanodiscus parvus
Stephanodiscus minutulus
Stephanodiscus binderanus
Stephanodiscus hantzschii f. tenuis
Stephanodiscus hantzschii
Stephanodiscus oregonicus
Stephanodiscus alpinus
Stephanodiscus medius
Stephanodiscus yellowstonensis
Stephanodiscus niagarae
Stephanodiscus reimeri
Surirella
Surirella stalagma
Surirella atomus
Surirella lacrimula
Surirella suecica
Surirella amphioxys
Surirella iowensis
Surirella arctica
Surirella brebissonii
Surirella angusta
Surirella pinnata
Surirella ovalis
Surirella crumena
Surirella striatula
Surirella undulata
Surirella cruciata
Surirella terryi
Surirella librile
Surirella internationalis
GC
Synedra
Synedra mazamaensis
Synedra famelica
Tabellaria
Tabellaria fenestrata
Tabellaria flocculosa
Tabularia
Tabularia fasciculata
Terpsinoë
Terpsinoe musica
Tetracyclus
Tetracyclus rupestris
Tetracyclus hinziae
Tetracyclus emarginatus
Tetracyclus glans
Thalassiosira
Thalassiosira minima
Thalassiosira weissflogii
Thalassiosira baltica
Thalassiosira lacustris
Tryblionella
Tryblionella lanceola
Tryblionella granulata
Tryblionella apiculata
Tryblionella calida
Tryblionella hungarica
Tryblionella brunoi
Tryblionella gracilis
Tryblionella plana var. fennica
Tryblionella scalaris
Ulnaria
Ulnaria goulardii
Ulnaria contracta
Ulnaria acus
Ulnaria delicatissima
Ulnaria capitata
Urosolenia
Urosolenia eriensis