Silva Center for Phycological Documentation: Index Nominum Algarum


The INA is a card file and online reporting system maintained at the Silva Center for Phycological Documentation of the University Herbarium, University of California, Berkeley. It contains nearly 200,000 names of algae (in the broad sense). The BPU is a card file containing bibliographic references pertaining to algal taxonomy.
A working list of algal type specimens at UC is available here

Results from INA database

NameAuthorSourceCitationYear
Pleurosigma balticum(Ehrenberg) W. Smith Ann. & Mag. Nat. Hist., ser. 2, 9: 8 1852
Pleurosigma delicatulumW. Smith Ann. & Mag. Nat. Hist., ser. 2, 9: 6, pl. I: fig. 5 1852
Pleurosigma distortumW. Smith Ann. & Mag. Nat. Hist., ser. 2, 9: 7, pl. I: fig. 10 1852
Pleurosigma elongatumW. Smith Ann. & Mag. Nat. Hist., ser. 2, 9: 6, pl. I: fig. 4 1852
Pleurosigma fasciola(Ehrenberg) W. Smith Ann. & Mag. Nat. Hist., ser. 2, 9: 9 1852
Pleurosigma formosumW. Smith Ann. & Mag. Nat. Hist., ser. 2, 9: 5, pl. I: figs. 1, 2 1852
Pleurosigma hippocampusW. Smith Ann. Mag. Nat. Hist. ser. 2. 9: 10, pl. II: figs. 9, 10 1852
Pleurosigma lacustreW. Smith Ann. & Mag. Nat. Hist., ser. 2, 9: 12, pl. II: fig. 14 1852
Pleurosigma littoraleW. Smith Ann. & Mag. Nat. Hist., ser. 2, 9: 10, pl. II: fig. 8 1852
Pleurosigma obscurumW. Smith Ann. & Mag. Nat. Hist., ser. 2, 9: 8, pl. I: fig. 11 1852
Pleurosigma prolongatumW. Smith Ann. & Mag. Nat. Hist., ser. 2, 9: 9, pl. II: fig. 7 1852
Pleurosigma speciosumW. Smith Ann. & Mag. Nat. Hist., ser. 2, 9: 6, pl. I: fig. 3 1852
Pleurosigma spenceri_('spencerii')(Bailey ex Quekett) W. Smith Ann. & Mag. Nat. Hist., ser. 2, 9: 12 1852
Pleurosigma strigilisW. Smith Ann. & Mag. Nat. Hist., ser. 2, 9: 8, pl. II: fig. 4 1852
Pleurosigma strigosumW. Smith Ann. & Mag. Nat. Hist., ser. 2, 9: 7, pl. I: fig. 6 1852
Pleurosigma decorumW. Smith Syn. Brit. Diat. 1: 63, pl. XXI: fig. 196 1853
Pleurosigma intermediumW. Smith Syn. Brit. Diat. 1: 64, pl. XXI: fig. 200 1853
Pleurosigma macrumW. Smith Syn. Brit. Diat. 1: 67, pl. XXXI: fig. 276 1853
Pleurosigma nubeculaW. Smith Syn. Brit. Diat. 1: 64, pl. XXI: fig. 201 1853
Pleurosigma quadratumW. Smith Syn. Brit. Diat. 1: 65, pl. XX: fig. 204 1853
Pleurosigma rigidumW. Smith Syn. Brit. Diat. 1: 64, pl. XX: fig. 198 1853
Pleurosigma tenuissimumW. Smith Syn. Brit. Diat. 1: 67, pl. XXII: fig. 213 1853
Pleurosigma inflatumShadbolt Trans. Micr. Soc. London ser. 2, 2: 16, pl. I: fig. 9 1854
Pleurosigma validumShadbolt Trans. Micr. Soc. London ser. 2, 2: 16, pl. I: fig. 8 1854
Pleurosigma arcuatumDonkin Trans. Microscop. Soc. London, ser. 2, 6: 25, pl. III: fig. 10 1858
Pleurosigma angustumDonkin Trans. Micr. Soc. London, ser. 2, 6: 24, pl. III: fig. 9 1858
Pleurosigma minutumDonkin Trans. Micr. Soc. London, ser. 2, 6: 24, pl. III: fig. 8 1858
Pleurosigma rectumDonkin Trans. Micr. Soc. London, ser. 2, 6: 23, pl. III: fig. 6 1858
Pleurosigma obtusatumW.S. Sullivant in W.S. Sullivant & T.G. Wormley Amer. J. Sci. & Arts, ser. 2, 27: 251, footnote 1859
Pleurosigma sciotoense_('sciotoensis')W.S. Sullivant in W.S. Sullivant & T.G. Wormley Amer. J. Sci. & Arts, ser. 2, 27: 251, footnote 1859
Pleurosigma wormleyiW.S. Sullivant in W.S. Sullivant & T.G. Wormley Amer. J. Sci. & Arts, ser. 2, 27: 251, footnote 1859
Pleurosigma lorenziiGrunow Verh. K.K. Zool.-Bot. Ges. Wien 10: 558, pl. 4: fig. 4 1860
Pleurosigma falcatumDonkin Quart. J. Micr. Sci., ser. 2, 1: 7, pl. I: fig. 1 1861
Pleurosigma scalprum(Gaillon) Ralfs in Pritchard Hist. Inf. ed. 4: 919 1861
Pleurosigma acuminatum var. lacustre(W. Smith) Rabenhorst Fl. Eur. Alg. I: 239 1864
Pleurosigma bistriatumSchumann Schr. K. Phys.-Ökon. Ges. Königsberg 8{Abh.}: 59, pl. II: fig. 58 1867
Pleurosigma capenseP. Petit in Folin & Périer Fonds de la Mer 2: 255, pl. XI: figs. 3, 4 1874
Pleurosigma balticum var. californicumGrunow in Cleve & Möller Diatoms [Exsiccatae] 5: no. 246 1879
Pleurosigma balticum var. californicumGrunow K. Svenska Vet.-Akad. Handl., ser. 4, 17{2}: 55 1880
Pleurosigma diminutumGrunow K. Svenska Vetensk.-Akad. Handl., ser. 4, 17{2}: 56 1880
Pleurosigma staurophorumGrunow K. Svenska Vet. Akad. Handl. [ser. 4], 17{2}: 61, no fig. 1880
Pleurosigma aestuarii var. minutumGrunow K. Svenska Vet. Akad. Handl. [ser. 4], 17{2}: 52, no fig. 1880
Pleurosigma clevei var. sibericum_('siberica')Grunow in Cleve Vega-Exped. Vet. Iaktt. 3: 475, pl. 35: fig. 14 1883
Pleurosigma prolongatum var. closterioidesGrunow Denkschr. Kaiserl. Akad. Wiss. [Wien], Math.-Naturwiss. Cl. 48(Abt.2): 105, pl. I(A): fig. 58. 1884
Pleurosigma subsalinumH. Peragallo Diatomiste 1(suppl.): 24, pl. VIII: figs. 16, 17 1891
Pleurosigma spenceri var. subsalinumH. Peragallo Diatomiste 1(suppl.): expl. pl. VIII: figs. 16, 17 1891
Pleurosigma asiaticum(Tempère & Brun) H. Peragallo Diatomiste 5: 1891
Pleurosigma angulatum f. minutum(Grunow) De Toni Syll. Alg. 2: 232 1891
Pleurosigma ibericumH. Peragallo Diatomiste 1, suppl.: 8, pl. III: fig. 12 1891
Pleurosigma incertum(H. Peragallo) Cleve K. Svenska Vet.-Akad. Handl., ser. 4, 26{2}: 43 1894
Pleurosigma maroccanum(Cleve ex H. Peragallo) Cleve K. Svenska Vet.-Akad. Handl., ser. 4, 26{2}: 42 1894
Pleurosigma nubecula var. intermedium_('intermedia')(W. Smith) Cleve K. Svenska Vet.-Akad. Handl., ser. 4, 26{2}: 35 1894
Pleurosigma fasciola var. arcuatum(Donkin) Van Heurck Treat. Diat.: 259 1896
Pleurosigma fasciola var. prolongatum(W. Smith) Van Heurck Treat. Diat.: 259 1896
Pleurosigma longum var. lanceolatum_('lanceolata')H. Peragallo & M. Peragallo Diatomées Marines de France: pl. XXXI: figs. 7, 8 (desc. on p. 159, 1899) 1898
Pleurosigma subtilissimumT. Marsson Zeitschrift für angewandte Mikroskopie und klinische Chemie 6: 119 1900
Pleurosigma subsalsum_('subsalsa')Wislouch & Kolbe Zhurn. Mikrobiol. 3: 267, pl. III: figs. 9-12 1917
Pleurosigma peisonis var. delicatulum_('delicatula')A. Amossé Bull. Soc. Sci. Nat. Ouest (Nantes), ser. 5, 2: 26, no fig. 1932
Pleurosigma angulatum var. minutum(Grunow) McCall J. Linn. Soc. London, Bot. 49: 266 1933
Pleurosigma najaMeister Ber. Schweiz. Bot. Ges. 44: 102, fig. 84 1935
Pleurosigma arcticum(Cleve) A. Mann Australas. Antarct. Exped. 1911-14, Sci. Rep., ser. C, 1{1}: 66 1937
Pleurosigma angusticonvexum_('angusti-convexum')Hagelstein N.Y. Acad. Sci., Sci. Surv. Porto Rico & Virgin Is. 8: 409, pl. 9: fig. 5 1939
Pleurosigma portoricenseHagelstein N.Y. Acad. Sci., Sci. Surv. Porto Rico & Virgin Is. 8: 412, pl. 9: figs. 6, 7 1939
Pleurosigma strigosum var. incisumHagelstein N.Y. Acad. Sci., Sci. Surv. Porto Rico & Virgin Is. 8: 414, pl. 9: figs. 8, 9 1939
Pleurosigma sardoumV. Zanon Bollettino di pesca, piscicoltura e idrobiologia 3: 220, fig. 3 1948
Pleurosigma longum f. minus_('minor')E. Manguin Rev. Alg. n.s. 5: 276, pl. V(31): figs. 11, 12 1961
Pleurosigma densestriatum_('densestriata')H.P. Gandhi Hydrobiologia 30: 266, figs. 55, 56, 58 1967
Pleurosigma wigginsianumHendey Nova Hedwigia 22: 403, fig. 3 1972
Pleurosigma planctonicumR. Simonsen "Meteor" Forschungsergebn. Reihe D, 19: 46, pl. 30 1974
Pleurosigma planktonicum_('planktonica')H.J. Schrader in Schrader & Fenner Initial Rep. Deep Sea Drilling Project 38: 993, pl. 5: fig. 25 1976
Pleurosigma acutum var. latumT.G. Chin & S.-C. Liu Journal of the University of Amoy (Xiamen) 3: 135, fig. A 1979
Pleurosigma intermedium var. dongshanenseT.G. Chin & S.-C. Liu Journal of the University of Amoy (Xiamen) 3: 137, fig. D 1979
Pleurosigma latiusculum var. grossipunctumT.G. Chin & S.-C. Liu Journal of the University of Amoy (Xiamen) 3: 136, fig. B 1979
Pleurosigma pelagicum var. medius_('medium')T.G. Chin & S.-C. Liu Journal of the University of Amoy (Xiamen) 3: 136, fig. C 1979
Pleurosigma angulatum var. falcatumS.-C. Liu & T.G. Chin Universitatis Amoiensis, Acta Scientiarum Naturalium 19(2): 113, fig. I 1980
Pleurosigma majus_('major')S.-C. Liu & T.G. Chin Universitatis Amoiensis, Acta Scientiarum Naturalium 19(2): 113, fig. H 1980
Pleurosigma clevei var. manitounukense_('manitounukensis')M. Poulin & A. Cardinal Canad. J. Bot. 60: 1266, figs. 4, 10, 11 1982
Pleurosigma decorum var. quebecense_('quebecensis')A. Cardinal, M. Poulin, & L. Bérard-Therriault Naturaliste Canad. 113: 182, figs. 61, 62 1986
Pleurosigma sibericum_('siberica')(Grunow) A. Cardinal, M. Poulin, & L. Bérard-Therriault Phycologia 28: 25 1989
Pleurosigma sibericum var. manitounukense_('manitounukensis')(M. Poulin & A. Cardinal) A. Cardinal, M. Poulin, & L. Bérard-Therriault Phycologia 28: 25 1989
Pleurosigma curiosum_('curiosa')van den Heuvel in F.A.S. Sterrenburg Diatom Res. 6: 388, figs. 22-28 1991
Pleurosigma stidolphiiF.A.S. Sterrenburg Bot. Mar. 34: 568, figs. 38-46 1991
Pleurosigma chilense var. patagonicum_('patagonica')M.E. Ferrario & E.A. Sar Darwiniana 30: 201, figs. 1-6 1991
Pleurosigma amarum_('amara')S.R. Stidolph Diatom Res. 7: 349, figs. 44-51, 64-76 1992
Pleurosigma sterrenburgiiS.R. Stidolph Nova Hedwigia 56: 144, figs. 19-25 1993
Pleurosigma negoroiT. Gotoh in J.H. Lee, J. Chung, & T. Gotoh Diatom 9: 34, pl. 2: 4, 5 1994
Pleurosigma simonseniiG.R. Hasle in C.R. Tomas (ed.) Identifying marine diatoms and dinoflagellates: 282, 339 1996
Pleurosigma longum f. minusE. Manguin ex Kociolek & Reviers Cryptogamie: Algologie 17: 184 1996
Pleurosigma chandolense_('chandolensis')H.P. Gandhi Fresh-water Diatoms Central Gujarat 75, pl. III: figs. 176, 177; pl. IV: fig. 187 1998
Pleurosigma tenuiformeC. H. von Quillfeldt Diatom Research 15: 222, figs. 1-7 2000
Pleurosigma ambrosianumF.A.S. Sterrenburg, M.A. Tiffany & C.B. Lange Proc. Acad. Nat. Sci. Philadelphia 150: 309, figs. 5-8, 11, 25-33 2000
Pleurosigma mamoranqii_('mamoranqi')G. Reid Bulletin Nat. Hist. Museum (Bot.) 31: 114, fig. 5 2001
Pleurosigma lysekiliiG. Reid Bulletin Nat. Hist. Museum (Bot.) 31: 114, fig. 6 2001
Pleurosigma malmoense_('malmoensis')G. Reid Bulletin Nat. Hist. Museum (Bot.) 31: 115 2001
Pleurosigma mariutense_('mariutensis')G. Reid Bot. J. Linn. Soc. [London] 140: 84, figs. 27-36 2002
Pleurosigma rahlehense_('ramlehensis')G. Reid Bot. J. Linn. Soc. [London] 140: 87, figs. 47-53 2002
Pleurosigma rushdyense_('rushdyensis')G. Reid Bot. J. Linn. Soc. [London] 140: 90, figs. 59-66 2002
Pleurosigma williamsiiG. Reid Bot. J. Linn. Soc. [London] 140: 80, figs. 9-17 2002
Pleurosigma gracilitate_('gracilitatis')F.A.S. Sterrenburg, M.E. Meave del Castillo, & M.A. Tiffany Cryptogamie: Algologie 24: 297 2003
Pleurosigma inscripturaM.A. Harper in Harper, Patterson, & Harper Acta Bot. Croat. 68: 343, fig. 19-20 2009
Pleurosigma patagonicum(M.E. Ferrario & E.A. Sar) F. Sterrenburg & E.A. Sar in Sar et al. Diatom Research 27: 248 2012
Pleurosigma lange-bertalotiiB. Karthick & J.P. Kociolek Beih. Nova Hedwigia 141: 119, figs. 1-8 2012
Pleurosigma guarreranumE.A. Sar, F.A.S. Sterrenburg & I. Sunesen European Journal of Phycology 48: 453, figs. 2-27 2013
Pleurosigma hinzianumI. Sunesen, F.A.S. Sterrenburg & E.A. Sar in Sar et al. Eur. J. Phycol. 49: 152, figs. 2-24 2014
Pleurosigma frenguellianumI. Sunesen, F.A.S. Sterrenburg & E.A. Sar in Sar et al. Eur. J. Phycol. 49: 157, figs. 25-47 2014
Pleurosigma chandolenseH.P. Gandhi ex Karthick in Guiry et al. Notulae algarum 133: 7, description and illustration in Gandhi (1998: 75, pl. III: figs. 176, 177; pl. IV: fig. 18) 2020
Pleurosigma simulacrumC.S. Lobban & F. Sterrenburg in Lobban Phytotaxa 508: 253, figs. 91-101 2021
Pleurosigma pacificumFei-Chao Du, Yu-Hang Li, & Kui-Dong Xu PhytoKeys 227: 102, fig. 1 2023
Amphitropis pleurosigmaReinhard image
Amphora pleurosigmaJ.A. Tempère & J.-J. Brun image
EUPLEUROSIGMASchütt image
Petalomonas mediocanellata var. pleurosigma(Stokes) Lemmermann image
Petalomonas pleurosigmaStokes image
PLEUROSIGMAW. Smith image
PLEUROSIGMA image
PLEUROSIGMA image
Pleurosigma abruptumH. Peragallo image
Pleurosigma acuminatum(Kützing) W. Smith image
Pleurosigma acuminatum f. minorRabenhorst image
Pleurosigma acuminatum f. obtusum_('obtusa')Dippel image
Pleurosigma acuminatum var. curtaM. Peragallo image
Pleurosigma acuminatum var. curtum_('curta')Grunow image
Pleurosigma acuminatum var. cuspidatum(Rabenhorst) Rabenhorst image
Pleurosigma acuminatum var. lacustre(Smith) Rabenhorst image
Pleurosigma acuminatum var. scalproidesBrun image
Pleurosigma acusMann image
Pleurosigma acutum f. brasilianum_('brasiliana')Müller-Melchers image
Pleurosigma acutumNorman image
Pleurosigma acutumNorman ex Ralfs image
Pleurosigma acutum var. australicumGrunow image
Pleurosigma acutum var. pelagicumH. Peragallo ex H. Peragallo image
Pleurosigma aestuarii(Brebisson) W. Smith image
Pleurosigma aestuarii var. delicatum_('delicata')Meister image
Pleurosigma aestuarii var. intermedium_('intermedia')Grunow image
Pleurosigma aestuarii var. minutum_('minuta')(Grunow) Grunow image
Pleurosigma affineGrunow image
Pleurosigma affine var. fossile_('fossilis')Grunow image
Pleurosigma affine var. interruptumH. Peragallo image
Pleurosigma affine var. marylandicum_('marylandica')Grunow image
Pleurosigma affine var. normannii_('normanni')(Ralfs) H. Peragallo image
Pleurosigma affine var. tempereiFrenguelli image
Pleurosigma agellusRalfs image
Pleurosigma amarum_('amara')Stidolph image
Pleurosigma americanumH. Peragallo image
Pleurosigma angulatum(Quekett) W. Smith image
Pleurosigma angulatum f. chemburianum_('chemburiana')Gonzalves & Gandhi image
Pleurosigma angulatum f. majorTruan y Luard image
Pleurosigma angulatum f. minorRabenhorst image
Pleurosigma angulatum f. undulatum(Grunow) Cleve image
Pleurosigma angulatum var. aestuariiMeunier image
Pleurosigma angulatum var. convexum(Grunow) Cleve image
Pleurosigma angulatum var. finmarchicum_('finmarchica')(Cleve) Cleve image
Pleurosigma angulatum var. genuinumCleve-Euler image
Pleurosigma angulatum var. javanicumGrunow image
Pleurosigma angulatum var. quadratumMeunier image
Pleurosigma angulatum var. robustumMcCall image
Pleurosigma angulatum var. undulatum_('undulata')Grunow image
Pleurosigma antarcticumGrunow image
Pleurosigma antarcticumHeiden & Kolbe image
Pleurosigma antarcticum var. angustum_('angusta')Heiden & Kolbe image
Pleurosigma antillarumH. Peragallo image
Pleurosigma apulum(Rabenhorst) Ralfs image
Pleurosigma arafurenseCastracane image
Pleurosigma arcticum(Cleve) Mann image
Pleurosigma atlanticumFrenguelli image
Pleurosigma atlanticumHeiden & Kolbe image
Pleurosigma attenuatum(Kützing) W. Smith image
Pleurosigma attenuatum var. agellus(C.G. Ehrenberg) Rabenhorst image
Pleurosigma attenuatum var. caspium_('caspia')Grunow image
Pleurosigma australeGrunow image
Pleurosigma australicumWitt image
Pleurosigma baileyiGrunow image
Pleurosigma balearicumCleve & Grunow image
Pleurosigma baltico-sinense_('baltico-sinensis')Schwarz image
Pleurosigma balticum(C.G. Ehrenberg) W. Smith image
Pleurosigma balticum f. minus_('minor')Leuduger-Fortmorel image
Pleurosigma balticum f. parvum_('parva')Leuduger-Fortmorel image
Pleurosigma balticum var. constrictumGrunow image
Pleurosigma balticum var. diminutumGrunow image
Pleurosigma balticum var. maeoticumPantocsek image
Pleurosigma balticum var. maximum_('maxima')H. Peragallo image
Pleurosigma balticum var. simileGrunow image
Pleurosigma balticum var. terryanumH. Peragallo image
Pleurosigma balticum var. wansbeckii(Donkin) H. Peragallo image
Pleurosigma barbadenseGrunow image
Pleurosigma biharensePantocsek image
Pleurosigma boyeriKeeley image
Pleurosigma brasilianum_('brasiliana')Müller-Melchers image
Pleurosigma brasilienseZimmermann image
Pleurosigma brebissoniiGrunow image
Pleurosigma bruniiCleve ex H. Peragallo image
Pleurosigma candidumSchumann image
Pleurosigma capenseKarsten image
Pleurosigma capensePetit image
Pleurosigma carinatumDonkin image
Pleurosigma chilense_('chilensis')Hustedt & Krasske image
Pleurosigma cleveiGrunow image
Pleurosigma clevei var. cornutum_('cornuta')Grunow ex Cleve image
Pleurosigma clevei var. fossile_('fossilis')Brun ex H. Peragallo image
Pleurosigma clevei var. genuinumCleve-Euler image
Pleurosigma clevei var. manitounukense_('manitounukensis')Poulin & Cardinal image
Pleurosigma compactumGreville image
Pleurosigma constrictumGrunow image
Pleurosigma convexumGrunow image
Pleurosigma crassumMeister image
Pleurosigma crookiiInglis image
Pleurosigma curvulum(C.G. Ehrenberg) Ralfs image
Pleurosigma curvulum f. longiorTruan y Luard image
Pleurosigma cuspidatum(Cleve) Cleve image
Pleurosigma cuspidatum(Rabenhorst) Ralfs image
Pleurosigma cuspidatum var. rostratumProschkina-Lavrenko image
Pleurosigma dalmaticum(Grunow) Grunow image
Pleurosigma decorum var. americanumH. Peragallo image
Pleurosigma decorum var. dalmaticumGrunow image
Pleurosigma decorum var. inflatumH. Peragallo image
Pleurosigma delicatulum f. minorSchulz image
Pleurosigma delicatulum var. africanum_('africana')Grunow image
Pleurosigma delicatulum var. americanum_('americana')Cleve image
Pleurosigma delicatulum var. genuinumCleve-Euler image
Pleurosigma delicatulum var. gracileMcCall image
Pleurosigma delicatulum var. hyalinum_('hyalina')Grunow image
Pleurosigma delicatulum var. karianum_('Kariana')Grunow image
Pleurosigma delicatulum var. macilentumH. Peragallo image
Pleurosigma delicatulum var. obtusiusculum_('obtusiuscula')Grunow ex Cleve image
Pleurosigma delicatulum var. salinarumGrunow image
Pleurosigma densestriatum_('densestriata')Gandhi image
Pleurosigma depauperatum_('depauperata')Manguin image
Pleurosigma directumGrunow image
Pleurosigma directum var. membranaceum_('membranacea')Subrahmanyan image
Pleurosigma directum var. secumdumKarsten image
Pleurosigma distinguendumHustedt image
Pleurosigma diverse-striatumMeister image
Pleurosigma dolosumMann image
Pleurosigma elegantissimumCastracane image
Pleurosigma elongatumAuerswald image
Pleurosigma elongatum var. balearicumH. Peragallo image
Pleurosigma elongatum var. densestriatum_('densestriata')Andrade & Teixeira image
Pleurosigma elongatum var. fallax(Grunow) Cleve image
Pleurosigma elongatum var. fallaxGrunow image
Pleurosigma elongatum var. genuinumCleve-Euler image
Pleurosigma elongatum var. gracileGrunow image
Pleurosigma elongatum var. gracilescens(Grunow) Grunow image
Pleurosigma elongatum var. grossepunctatumJohn image
Pleurosigma elongatum var. karianum_('kariana')(Grunow) Cleve image
Pleurosigma elongatum var. latestriatum_('latestriata')M. Peragallo image
Pleurosigma elongatum var. sinicum_('sinica')Skvortzov image
Pleurosigma eudonPantocsek image
Pleurosigma eudon var. kerguelense_('kerguelensis')Heiden & Kolbe image
Pleurosigma eudon var. strictum_('stricta')M. Peragallo image
Pleurosigma excelsumMeister image
Pleurosigma exemptumMann image
Pleurosigma eximium(Thwaites) Grunow image
Pleurosigma exsulCleve image
Pleurosigma fallaxGrunow image
Pleurosigma falxMann image
Pleurosigma fasciola(C.G. Ehrenberg) W. Smith image
Pleurosigma fasciola var. sulcatumGrunow image
Pleurosigma fasciola var. tenuirostre_('tenuirostris')Grunow image
Pleurosigma febigeri_('febigerii')Grunow image
Pleurosigma finmarchicumCleve image
Pleurosigma fissum_('fissa')Jurilj image
Pleurosigma fluviicygnorumJohn image
Pleurosigma formosum var. arcusCleve image
Pleurosigma formosum var. dalmaticum_('dalmatica')(Grunow) Cleve image
Pleurosigma formosum var. genuinumCleve-Euler image
Pleurosigma formosum var. longissimum_('longissima')Grunow image
Pleurosigma formosum var. orientale_('orientalis')Skvortzov image
Pleurosigma frigidumMann image
Pleurosigma galapagenseCleve image
Pleurosigma galapagense var. kumariense_('kumariensis')Venkataraman image
Pleurosigma giganteumGrunow image
Pleurosigma giganteum var. baccatumO'Meara image
Pleurosigma glacialeCleve image
Pleurosigma gracileHustedt image
Pleurosigma gracilentumRabenhorst image
Pleurosigma gracilentumRabenhorst image
Pleurosigma gracilescensGrunow image
Pleurosigma gracillimumMeister image
Pleurosigma grovesiiCleve ex H. Peragallo image
Pleurosigma gruendleri_('gründleri')Grunow image
Pleurosigma hamuliferumBrun image
Pleurosigma herosCleve image
Pleurosigma hippocampus(C.G. Ehrenberg) W. Smith image
Pleurosigma hungaricumCleve & Brun image
Pleurosigma hyalinumGrunow image
Pleurosigma indicumSimonsen image
Pleurosigma intermedium var. amphipleuroidesGrunow image
Pleurosigma intermedium var. subrectumGrunow image
Pleurosigma italicumH. Peragallo image
Pleurosigma itaparicanumZimmermann image
Pleurosigma itiumRicard image
Pleurosigma itium var. angulosumRicard image
Pleurosigma japonicumCastracane image
Pleurosigma javanicumGrunow image
Pleurosigma javanicumH. Peragallo image
Pleurosigma karsteniiTaylor image
Pleurosigma kerguelenseGrunow image
Pleurosigma kerguelense var. robustum_('robusta')M. Peragallo image
Pleurosigma kjellmaniiCleve image
Pleurosigma kjellmanii_('kjellmani')Cleve image
Pleurosigma kochiiPantocsek image
Pleurosigma kowienseGiffen image
Pleurosigma kuetzingiiGrunow image
Pleurosigma kuetzingiiGrunow image
Pleurosigma lamprocampum(C.G. Ehrenberg) Ralfs image
Pleurosigma lanceolatumDonkin image
Pleurosigma lanceolatum f. undulatum_('undulata')Frenguelli image
Pleurosigma lanceolatumG. Norman image
Pleurosigma lanceolatumG. Norman image
Pleurosigma lanceolatum var. cuspidatumCleve image
Pleurosigma lanceolatum var. tahitense_('tahitensis')Grunow image
Pleurosigma latiusculumH. Peragallo image
Pleurosigma latumCleve image
Pleurosigma lineareGrunow image
Pleurosigma littorale var. longitudinaleMann image
Pleurosigma longinum_('longina')W. Smith ex Brightwell image
Pleurosigma longissimumCleve image
Pleurosigma longitudinaleMann image
Pleurosigma longumCleve image
Pleurosigma longum f. japonicum_('japonica')Skvortzov image
Pleurosigma longum f. minus_('minor')Manguin image
Pleurosigma longum var. americanum(H. Peragallo) Cleve image
Pleurosigma longum var. genuinumCleve-Euler image
Pleurosigma longum var. inflatum_('inflata')(H. Peragallo) Cleve image
Pleurosigma macilentumH. Peragallo image
Pleurosigma maeoticumPantocsek image
Pleurosigma majus(Grunow) Cleve image
Pleurosigma makronJohnston image
Pleurosigma mannii_('manni')Hanna & Grant image
Pleurosigma marinumDonkin image
Pleurosigma marinum var. antillarumH. Peragallo image
Pleurosigma marinum var. ibericumH. Peragallo image
Pleurosigma marinum var. italicumH. Peragallo image
Pleurosigma marinum var. italicum_('italica')(Peragallo) Cleve image
Pleurosigma minutumGrunow image
Pleurosigma mirabileO'Meara image
Pleurosigma muscicolaKrasske image
Pleurosigma naviculaceumBrebisson image
Pleurosigma naviculaceum f. minutum_('minuta')Cleve image
Pleurosigma neglectumKarsten image
Pleurosigma neogradensePantocsek image
Pleurosigma nicobaricumGrunow image
Pleurosigma nicobaricumGrunow image
Pleurosigma nicobaricum var. hamuliferum_('hamulifera')(Brun) Cleve image
Pleurosigma nicobaricum var. sagitta(Brun & Tempère) Cleve image
Pleurosigma nodiferumGrunow image
Pleurosigma normaniiRalfs image
Pleurosigma normanii var. affine(Grunow) Cleve-Euler image
Pleurosigma normanii var. fossile_('fossilis')(Grunow) Cleve image
Pleurosigma normanii var. maheKarsten image
Pleurosigma normanii var. marylandicum_('marylandica')(Grunow) Cleve image
Pleurosigma normanii var. validumCleve-Euler image
Pleurosigma notarisiiCastracane image
Pleurosigma nubecula var. amphipleuroides(Grunow) Cleve image
Pleurosigma nubecula var. genuinumCleve-Euler image
Pleurosigma nubecula var. mauritianum_('mauritiana')Grunow ex Cleve image
Pleurosigma nubecula var. parvulum_('parvula')Grunow image
Pleurosigma nubecula var. subrectum_('subrecta')(Cleve) Cleve image
Pleurosigma obesumMann image
Pleurosigma obliquumGrunow image
Pleurosigma obscurum var. barbadense_('barbadensis')Cleve image
Pleurosigma obscurum var. diminutum_('diminuta')H. Peragallo image
Pleurosigma obscurum var. mediterraneum_('mediterranea')Grunow image
Pleurosigma obtusatumSullivant & Wormley image
Pleurosigma obtusumMann image
Pleurosigma olympianumTerry ex Boyer image
Pleurosigma omearae_('o'mearii')(Grunow) H. Peragallo image
Pleurosigma paradoxumH. Peragallo image
Pleurosigma parkeriHarrison image
Pleurosigma parkeri var. stauroneoidesGrunow image
Pleurosigma peisonisGrunow image
Pleurosigma pelagicumCleve image
Pleurosigma peragalloi var. graciliorCleve image
Pleurosigma peragalloi var. perangustum_('perangusta')Cleve image
Pleurosigma peragalloi_('peragalli')Brun image
Pleurosigma peragalloi_('peragalli')Brun image
Pleurosigma permagnumMeister image
Pleurosigma perthenseJohn image
Pleurosigma plagiostomaGrunow image
Pleurosigma planctonicumCleve-Euler image
Pleurosigma planctonicumCleve-Euler image
Pleurosigma planctonicumSimonsen image
Pleurosigma planktonicum_('planktonica')Schrader image
Pleurosigma praelongumCleve image
Pleurosigma prismaMann image
Pleurosigma pulchrumGrunow image
Pleurosigma pumilumSchumann image
Pleurosigma pusillumGrunow image
Pleurosigma quadratum var. rhombeumGrunow image
Pleurosigma quadratum var. rhombeumGrunow image
Pleurosigma rectum var. minutum(Donkin) Carruthers image
Pleurosigma reticulatum(Norman ex Ralfs) Hustedt image
Pleurosigma retusumZimmermann image
Pleurosigma reversumGregory image
Pleurosigma rhombeumGrunow image
Pleurosigma rhomboidesCleve image
Pleurosigma rhomboides var. angustiorGrunow image
Pleurosigma rigensMann image
Pleurosigma rigidum f. minus_('minor')McCall image
Pleurosigma rigidum var. genuinumCleve-Euler image
Pleurosigma rigidum var. giganteum_('gigantea')(Grunow) Cleve image
Pleurosigma rigidum var. incurvatum_('incurvata')Brun image
Pleurosigma rigidum var. incurvum_('incurva')Brun image
Pleurosigma robustum(Grunow) Grunow image
Pleurosigma rostratumHustedt image
Pleurosigma sabangiMeister image
Pleurosigma sagittaTempère & Brun image
Pleurosigma salinarum(Grunow) Grunow image
Pleurosigma salinarum var. boyeri(Keeley) Reimer image
Pleurosigma salinarum var. paradoxum_('paradoxa')(H. Peragallo) Cleve image
Pleurosigma salinarum var. pusillum_('pusilla')(Grunow) Cleve image
Pleurosigma salinarum var. typicumCleve-Euler image
Pleurosigma scalpellum(Kützing) Ralfs image
Pleurosigma scalproidesRabenhorst image
Pleurosigma scalproidesRabenhorst image
Pleurosigma scalproides var. minutulum_('minutula')Dippel image
Pleurosigma sciotenseSullivant & Wormley image
Pleurosigma sibericum var. manitounukense_('manitounukensis')(Poulin & Cardinal) Cardinal, Poulin & Berard-Therriault image
Pleurosigma sibericum_('siberica')(Grunow) Cardinal, Poulin & Berard-Therriault image
Pleurosigma signatumVoigt image
Pleurosigma simileGrunow image
Pleurosigma simonseniiHasle image
Pleurosigma simplexRicard image
Pleurosigma simum(C.G. Ehrenberg) Ralfs image
Pleurosigma sinense var. calcuttense_('calcuttensis')Grunow image
Pleurosigma sinense_('sinensis')(C.G. Ehrenberg) Ralfs image
Pleurosigma sinuosum(C.G. Ehrenberg) Ralfs image
Pleurosigma smithianumCastracane image
Pleurosigma smithiiGrunow image
Pleurosigma speciosum var. abruptumH. Peragallo image
Pleurosigma speciosum var. gracileH. Peragallo image
Pleurosigma speciosum var. javanicumH. Peragallo image
Pleurosigma speciosum var. majus_('major')Grunow image
Pleurosigma speciosum var. mediterraneum_('mediterranea')(Grunow) Cleve image
Pleurosigma speciosum var. pulchrum_('pulchra')(Grunow) Cleve image
Pleurosigma speciosum var. sumatricumH. Peragallo image
Pleurosigma speciosum var. tortuosum_('tortuosa')(Cleve) Cleve image
Pleurosigma spectabileGrunow image
Pleurosigma spectrosumBarkas image
Pleurosigma spenceri var. antillarumGrunow image
Pleurosigma spenceri var. arnottiiCleve & Grunow image
Pleurosigma spenceri var. boreale_('borealis')Grunow image
Pleurosigma spenceri var. curvulaGrunow image
Pleurosigma spenceri var. exile_('exilis')Grunow image
Pleurosigma spenceri var. kuetzingii(Grunow) Grunow image
Pleurosigma spenceri var. minutulum_('minutula')Grunow image
Pleurosigma spenceri var. sinense_('sinensis')Skvortzov image
Pleurosigma spenceri var. smithiiGrunow image
Pleurosigma spenceri var. tientsinense_('tientsinensis')Skvortzov image
Pleurosigma spenceri_('spencerii')W. Smith image
Pleurosigma spinulosumPantocsek & Greguss image
Pleurosigma staurolineatumKarsten image
Pleurosigma sterrenburgiiStidolph image
Pleurosigma stidolphiiSterrenburg image
Pleurosigma strigosum var. convexumGrunow image
Pleurosigma strigosum var. finmarchicum(Grunow) Cleve-Euler image
Pleurosigma strigosum var. genuinumCleve-Euler image
Pleurosigma strigosum var. latum(Cleve) Cleve-Euler image
Pleurosigma stuxbergiiCleve & Grunow image
Pleurosigma stuxbergii var. diminutum_('diminuta')H. Peragallo image
Pleurosigma stuxbergii var. genuinumCleve-Euler image
Pleurosigma stuxbergii var. hyperboreum_('hyperborea')Grunow image
Pleurosigma stuxbergii var. latiusculum_('latiuscula')(Peragallo) Cleve image
Pleurosigma stuxbergii var. latiusculum_('latiuscula')H. Peragallo image
Pleurosigma stuxbergii var. minus_('minor')Grunow image
Pleurosigma stuxbergii var. minus_('minor')H. Peragallo image
Pleurosigma stuxbergii var. rhomboides(Cleve) Cleve image
Pleurosigma subhyalinumHustedt & Aleem image
Pleurosigma subrectumCleve image
Pleurosigma subrectumCleve image
Pleurosigma subrectumGrunow image
Pleurosigma subrigidumGrunow image
Pleurosigma subtile(Brebisson) Ralfs image
Pleurosigma sulcatumGrunow image
Pleurosigma suluenseMann image
Pleurosigma tahitianumRicard image
Pleurosigma tahitienseO.N. Witt image
Pleurosigma tenerumE. Jorgensen image
Pleurosigma tenuirostre_('tenuirostris')Grunow image
Pleurosigma tenuissimum var. hyperboreum_('hyperborea')Grunow image
Pleurosigma tenuissimum var. subtilissimum_('subtilissima')Grunow image
Pleurosigma terryanumH. Peragallo image
Pleurosigma thaitienseCastracane image
Pleurosigma thumii(Castracane ex H. Peragallo) De Toni image
Pleurosigma thuringicum(Kützing) Ralfs image
Pleurosigma tortuosumCleve image
Pleurosigma transylvanicumPantocsek image
Pleurosigma tropicumGrunow image
Pleurosigma umbilicatumCleve image
Pleurosigma vairaenseRicard image
Pleurosigma validum var. nicobaricumGrunow image
Pleurosigma vitreumCleve image
Pleurosigma wansbeckiiDonkin image
Pleurosigma weissflogii(Grunow) Cleve image
Pleurosigma wormleyiSullivant image
PLEUROSIGMAESchütt image