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

Tabular display

Results from INA database

  1. EUTHALASSIOSIRA Gran image
  2. THALASSIOSIRA image
  3. THALASSIOSIRA image
  4. THALASSIOSIRA Cleve image
  5. THALASSIOSIRACEAE Hasle image
  6. THALASSIOSIRACEAE Lebour image
  7. THALASSIOSIRALES Z.I. Glezer & I.V. Makarova
  8. Thalassiosira aculeata Proshkina-Lavrenko image
  9. Thalassiosira adamsii_('adamsi') Mertz image
  10. Thalassiosira adeliae Manguin image
  11. Thalassiosira aestivalis Gran image
  12. Thalassiosira affinis Makarova image
  13. Thalassiosira allenii H. Takano image
  14. Thalassiosira ambigua Kozlova image
  15. Thalassiosira ambigua Kozlova image
  16. Thalassiosira ambigua_('ambiqua') Koslova image
  17. Thalassiosira andamanica A.D. Gedde
  18. Thalassiosira angstii (Gran) Makarova image
  19. Thalassiosira angulata (Gregory) G.R. Hasle image
  20. Thalassiosira anguste-lineata (A. Schmidt) G. Fryxell & G.R. Hasle image
  21. Thalassiosira antarctica Comber image
  22. Thalassiosira antarctica Karsten image
  23. Thalassiosira antarctica var. borealis T.A. Villareal & G.A. Fryxell image
  24. Thalassiosira antarctica var. borealis T.A. Villareal & G.A. Fryxell {invalid}
  25. Thalassiosira antiqua (Grunow) Proshkina-Lavrenko image
  26. Thalassiosira antiqua var. septata Proshkina-Lavrenko image
  27. Thalassiosira atlantica (Dangeard) Makarova image
  28. Thalassiosira aurivillii Cleve image
  29. Thalassiosira australiensis (Grunow) G.R. Hasle
  30. Thalassiosira australis M. Peragallo image
  31. Thalassiosira azovica R.M. Gogorev, R.M., & G.V. KOVALEVA
  32. Thalassiosira baldaufii P. Bodén image
  33. Thalassiosira baldaufii P. Bodén
  34. Thalassiosira baltica (Grunow) Ostenfeld image
  35. Thalassiosira baltica var. batava Van Goor image
  36. Thalassiosira baltica var. fluviatilis (Lemmermann) Cleve-Euler image
  37. Thalassiosira baltica var. genuina Cleve-Euler image
  38. Thalassiosira binata G. Fryxell image
  39. Thalassiosira binata var. bibinata Y. Gao & Z. Cheng
  40. Thalassiosira binata var. minor Y. Gao & Z. Cheng
  41. Thalassiosira bingensis H. Takano
  42. Thalassiosira bioculata (Grunow) Ostenfeld
  43. Thalassiosira bioculata var. exigua (Grunow) Hustedt
  44. Thalassiosira bipartita (Rattray) G.M. Hallegraeff
  45. Thalassiosira bipartita (Rattray) Hallegraeff image
  46. Thalassiosira bipora M. Shiono
  47. Thalassiosira blanda_(`blandus') (A. Schmidt) T.V. Desikachary & S. Gowthaman
  48. Thalassiosira blandus (A. Schmidt) Desikachary & Gowthaman image
  49. Thalassiosira bradburyi_('bradbury') G.K. Khursevich & J.P. Kociolek
  50. Thalassiosira bramaputrae (Ehrenberg) Håkansson & Locker image
  51. Thalassiosira bramaputrae var. proximus (Makarova) Makarova image
  52. Thalassiosira bramaputrae var. septentrionalis (Grunow) Makarova image
  53. Thalassiosira brunii F. Akiba & Y. Yanagisawa
  54. Thalassiosira brunii F. Akiba & Yanagisawa image
  55. Thalassiosira bukryi J.A. Barron
  56. Thalassiosira bulbosa E.E. Syvertsen
  57. Thalassiosira bungerensis R.M. Gogorev & Z.V. Pushina
  58. Thalassiosira burckliana H.J. Schrader
  59. Thalassiosira californica Y. Tanimura
  60. Thalassiosira cardiophora F.E. Round
  61. Thalassiosira caspica Makarova image
  62. Thalassiosira castanea F. Akiba & Y. Yanagisawa
  63. Thalassiosira catharinensis M. Garcia
  64. Thalassiosira cedarkeyensis A.K.S.K. Prasad
  65. Thalassiosira centra M. Shiono
  66. Thalassiosira chilensis Krasske image
  67. Thalassiosira clevei Gran image
  68. Thalassiosira complicata R. Gersonde
  69. Thalassiosira concava H.J. Semina
  70. Thalassiosira concaviuscula I.V. Makarova
  71. Thalassiosira concaviuscula Makarova image
  72. Thalassiosira condensata Cleve image
  73. Thalassiosira conferta G.R. Hasle image
  74. Thalassiosira confusa I.V. Makarova
  75. Thalassiosira confusa Makarova image
  76. Thalassiosira congoi Leuduger-Fortmorel image
  77. Thalassiosira constricta Gaarder image
  78. Thalassiosira constricta K.R. Gaarder
  79. Thalassiosira convexa Mukhina image
  80. Thalassiosira convexa var. aspinosa H.J. Schrader
  81. Thalassiosira coramandeliana Subrahmanyan image
  82. Thalassiosira coronata Gaarder image
  83. Thalassiosira coronata Proshkina-Lavrenko image
  84. Thalassiosira coronifera Proshkina-Lavrenko image
  85. Thalassiosira cuitzeonensis I. Israde, K. Serieyssol & F. Gasse
  86. Thalassiosira curiosa Hajós image
  87. Thalassiosira curviseriata H. Takano {invalid}
  88. Thalassiosira decipiens (Grunow) E. Jřrgensen image
  89. Thalassiosira decorata Cleve-Euler image
  90. Thalassiosira delicata (J.A. Barron) F. Akiba
  91. Thalassiosira delicatissima Proshkina-Lavrenko image
  92. Thalassiosira delicatula Hustedt image
  93. Thalassiosira delicatula Hustedt {illegitimate}
  94. Thalassiosira delicatula Ostenfeld image
  95. Thalassiosira densannula G.R. Hasle & G. Fryxell image
  96. Thalassiosira depressa M. Shiono
  97. Thalassiosira dichotomica (O.G. Kozlova) G. Fryxell & G.R. Hasle image
  98. Thalassiosira dichotomica (O.G. Kozlova) G.A. Fryxell & G.R. Hasle
  99. Thalassiosira diporocyclus G.R. Hasle image
  100. Thalassiosira dispar (M. Peragallo & J. Héribaud) K. Serieyssol
  101. Thalassiosira distans Pouchet image
  102. Thalassiosira dolmatovae Oreshkina ex A. Gladenkov
  103. Thalassiosira dubia Koslova image
  104. Thalassiosira dubia Leuduger-Fortmorel image
  105. Thalassiosira dubiosa H.J. Schrader
  106. Thalassiosira duostra C. Pienaar
  107. Thalassiosira eccentrica var. fasciculata (Hustedt) Nizamuddin
  108. Thalassiosira eccentrica_('excentrica') (Ehrenberg) Cleve image
  109. Thalassiosira echinata H.J. Semina
  110. Thalassiosira elegans (Brun) Jouse image
  111. Thalassiosira elliptipora (Donahue) Fenner image
  112. Thalassiosira elliptipora J. Fenner ex A.D. Mahood & J.A. Barron
  113. Thalassiosira elliptipora J.A. Fenner {invalid}
  114. Thalassiosira elsayedii G. Fryxell image
  115. Thalassiosira endoseriata G.R. Hasle & G. Fryxell image
  116. Thalassiosira endoseriata G.R. Hasle & G.A. Fryxell
  117. Thalassiosira excentrica Karsten image
  118. Thalassiosira exceptiuncula M. Shiono
  119. Thalassiosira exigua G. Fryxell & G.R. Hasle image
  120. Thalassiosira expecta S.L. VanLandingham
  121. Thalassiosira expecta Van Landingham image
  122. Thalassiosira fallax Koslova image
  123. Thalassiosira fallax Meunier
  124. Thalassiosira fallax O.G. Kozlova {invalid}
  125. Thalassiosira fasciculata D.M. Harwood & T. Maruyama
  126. Thalassiosira faurii (Gasse) G.R. Hasle image
  127. Thalassiosira favosa I.V. Makarova
  128. Thalassiosira feibelii M. Brindle & J. Mohan
  129. Thalassiosira ferelineata G.R. Hasle & G. Fryxell image
  130. Thalassiosira flexuosa var. tenella Y. Tanimura
  131. Thalassiosira flexuosa_('flexosa') (J. Brun) F. Akiba & Y. Yanagisawa image
  132. Thalassiosira flexuosa_(`flexosa') (J. Brun) F. Akiba & Y. Yanagisawa
  133. Thalassiosira floridana (Cooper) G.R. Hasle image
  134. Thalassiosira floridana (Cooper) G.R. Hasle image
  135. Thalassiosira fluviatilis Hustedt image
  136. Thalassiosira fluviatilis f. mangrovei_('mangrovii') Manguin image
  137. Thalassiosira fraga H.J. Schrader
  138. Thalassiosira fragilis G. Fryxell image
  139. Thalassiosira frenguellii Kozlova image
  140. Thalassiosira frenguellii O.G. Kozlova
  141. Thalassiosira frenguellii_('frenguelli') Kozlova image
  142. Thalassiosira frenguellii_(`frenguelli') O.G. Kozlova
  143. Thalassiosira frenguelliopsis G. Fryxell & Johansen image
  144. Thalassiosira frenguelliopsis G.A. Fryxell & J.R. Johansen
  145. Thalassiosira frigida Cleve-Euler image
  146. Thalassiosira frigida Cleve-Euler image
  147. Thalassiosira fryxelliae E.A. Sar & I. Sunesen
  148. Thalassiosira gasseae M. Brindle & J. Mohan
  149. Thalassiosira gelatinosa (Cleve) Cleve image
  150. Thalassiosira gelatinosa Hensen image
  151. Thalassiosira gerloffii Rivera Ramirez image
  152. Thalassiosira gersondei J.A. Barron
  153. Thalassiosira gessneri Hustedt image
  154. Thalassiosira gracilis (G. Karsten) Hustedt
  155. Thalassiosira gracilis (Karsten) Hustedt image
  156. Thalassiosira gracilis var. expecta (S.L. VanLandingham) G.A. Fryxell & G.R. Hasle
  157. Thalassiosira gracilis var. expecta (Van Landingham) G. Fryxell & G.R. Hasle image
  158. Thalassiosira gravida P. Cleve
  159. Thalassiosira gravida f. fossilis Jouse image
  160. Thalassiosira grunowii F. Akiba & Y. Yanagisawa
  161. Thalassiosira guillardii G.R. Hasle image
  162. Thalassiosira guillardii Hasle
  163. Thalassiosira hasleae Cassie & Dempsey image
  164. Thalassiosira haynaldiella Jouse image
  165. Thalassiosira hendeyi G.R. Hasle & G. Fryxell image
  166. Thalassiosira heteromera Makarova image
  167. Thalassiosira hexagona T. Hayashi
  168. Thalassiosira hibernalis A.M. Gayoso
  169. Thalassiosira hispanica Paulsen image
  170. Thalassiosira hispida E.E. Syvertsen image
  171. Thalassiosira hispida Syvertsen
  172. Thalassiosira hustedtii Poretzky & Anissimova image
  173. Thalassiosira hustedtii V.S. Poretzky & Anissimova
  174. Thalassiosira hustedtii var. vana Makarova & Proshkina-Lavrenko image
  175. Thalassiosira hyalina (Grunow) Gran image
  176. Thalassiosira hyalina (Grunow) Gran image
  177. Thalassiosira hyalina f. kryophiloides Kus'mina image
  178. Thalassiosira hydra A.J. Gombos, Jr. image
  179. Thalassiosira hydra A.M. Gombos, Jr.
  180. Thalassiosira hyperborea (Grunow) G.R. Hasle
  181. Thalassiosira hyperborea var. lacunosa G.R. Hasle
  182. Thalassiosira hyperborea var. pelagica (Cleve-Euler) G.R. Hasle
  183. Thalassiosira hyperborea var. septentrionalis (Grunow) G.R. Hasle
  184. Thalassiosira ignota Makarova image
  185. Thalassiosira incerta Makarova image
  186. Thalassiosira incerta var. fluvialis G.V. Gogorev & R.M. Kovaleva
  187. Thalassiosira incerta var. strelnikovae G.V. Gogorev & R.M. Kovaleva
  188. Thalassiosira indica Kazarina image
  189. Thalassiosira inlandica T. Hayashi
  190. Thalassiosira insigna (Jouse) D.M. Harwood & T. Maruyama image
  191. Thalassiosira insignis_('insigna') (A.P. Jousé) D.M. Harwood & T. Maruyama
  192. Thalassiosira intermedia Makarova image
  193. Thalassiosira intrannula Herzig & G. Fryxell image
  194. Thalassiosira inura R. Gersonde
  195. Thalassiosira iraidae G.K. Khursevich & J.P. Kociolek
  196. Thalassiosira irregulata H.J. Schrader
  197. Thalassiosira japonica Kisselev image
  198. Thalassiosira jouseae F. Akiba
  199. Thalassiosira kamszatica (Lupikina) Lupikina & Khursevich
  200. Thalassiosira kanayae Y. Tanimura
  201. Thalassiosira karenae H.J. Semina image
  202. Thalassiosira khursevichiae_('khursevicha') B. Laslandes & J.P. Kociolek
  203. Thalassiosira kilarskii I. Kaczmarska
  204. Thalassiosira kolbei (A.P. Jousé) R. Gersonde
  205. Thalassiosira kolbei (Jouse) R. Gersonde image
  206. Thalassiosira kozlovii Makarova image
  207. Thalassiosira kozyrenkoae G.V. Kovaleva & R.M. Gogorev
  208. Thalassiosira kryophila (Grunow) E. Jorgensen image
  209. Thalassiosira kushirensis H. Takano
  210. Thalassiosira labimarginata P. Bodén image
  211. Thalassiosira labimarginata P. Bodén
  212. Thalassiosira lacustris (Grunow) G.R. Hasle image
  213. Thalassiosira lacustris var. proximus (Makarova) Makarova image
  214. Thalassiosira lacustris var. septentrionalis (Grunow) Makarova image
  215. Thalassiosira laevis Y. Gao & Z. Cheng
  216. Thalassiosira latimarginata I.V. Makarova
  217. Thalassiosira latimarginata Makarova image
  218. Thalassiosira lentiginosa (Janisch) G. Fryxell image
  219. Thalassiosira leptopus (Grunow) G.R. Hasle & G. Fryxell image
  220. Thalassiosira leptopus var. elliptica (Kolbe) J.A. Barron
  221. Thalassiosira levanderi Van Goor image
  222. Thalassiosira licea G. Fryxell image
  223. Thalassiosira lineata Jousé image
  224. Thalassiosira lineata Jouse image
  225. Thalassiosira lineoides Herzig & G. Fryxell image
  226. Thalassiosira livingstoniorum A.K.S.K. Prasad, P. Hargraves, & J.A. Nienow
  227. Thalassiosira longifultoportulata R.M. Gogorev & Z.V. Pushina
  228. Thalassiosira lundiana G. Fryxell image
  229. Thalassiosira lusca H.J. Schrader
  230. Thalassiosira maculata G. Fryxell & J. Johansen image
  231. Thalassiosira maeotica Proshkina-Lavrenko image
  232. Thalassiosira mahoodii J.A. Barron
  233. Thalassiosira makarovae V.V. Mukhina
  234. Thalassiosira mala H. Takano
  235. Thalassiosira mala H. Takano {invalid}
  236. Thalassiosira manifesta Sheshukova-Poretskaya image
  237. Thalassiosira margaritae (Frenguelli & Orlando) Kozlova image
  238. Thalassiosira marginata Venkataraman image
  239. Thalassiosira marujamica Sheshukova-Poretskaya image
  240. Thalassiosira mediaconvexa H.J. Schrader
  241. Thalassiosira mediterranea (Schröder) G.R. Hasle image
  242. Thalassiosira mendiolana G.R. Hasle & Heimdal image
  243. Thalassiosira minicosmica J.H. Lee & J.S. Park
  244. Thalassiosira minima Gaarder image
  245. Thalassiosira minima Mertz image
  246. Thalassiosira minuscula Krasske image
  247. Thalassiosira miocenica H.J. Schrader
  248. Thalassiosira mioplicata F. Akiba & Y. Yanagisawa
  249. Thalassiosira mirniae Jouse image
  250. Thalassiosira mirnyi Jouse image
  251. Thalassiosira mizunamiensis Y. Yanagisawa
  252. Thalassiosira moholensis (H.J. Schrader) F. Akiba & Y. Yanagisawa
  253. Thalassiosira monile Cleve image
  254. Thalassiosira monoporocyclus G.R. Hasle image
  255. Thalassiosira multipora M.C. Whiting & H. Schrader
  256. Thalassiosira multipora M.C. Whiting & H.J. Schrader image
  257. Thalassiosira nana Lohmann image
  258. Thalassiosira nanolineata (Mann) G. Fryxell & G.R. Hasle image
  259. Thalassiosira nativa Sheshukova-Poretskaya image
  260. Thalassiosira nativa Sheshukova-Poretskaya image
  261. Thalassiosira nevadica G.K. Khursevich & S. VanLandingham
  262. Thalassiosira nidulus (Tempère & Brun) Jousé
  263. Thalassiosira nidulus var. delicata J.A. Barron
  264. Thalassiosira nodulolineata (Hendey) G.R. Hasle & G. Fryxell image
  265. Thalassiosira nordenskioeldii_('nordenskiöldii') Cleve image
  266. Thalassiosira obica Koslova image
  267. Thalassiosira obica Kozlova image
  268. Thalassiosira oceanica G.R. Hasle image
  269. Thalassiosira oestrupii (Ostenfeld) G.R. Hasle
  270. Thalassiosira oestrupii var. plana Jousé
  271. Thalassiosira oestrupii var. plana Jouse image
  272. Thalassiosira oestrupii var. venrickiae_('venrickae') G. Fryxell & G.R. Hasle image
  273. Thalassiosira oestrupii var. venrickiae_(`venrickae') G.A. Fryxell & G.R. Hasle
  274. Thalassiosira oliveriana (O'Meara) I.V. Makarova & V.A. Nikolajev
  275. Thalassiosira oliveriana var. sparsa D.M. Harwood & T. Maruyama
  276. Thalassiosira oranica G.R. Hasle
  277. Thalassiosira ordinaria I.V. Makarova
  278. Thalassiosira orientalis Sheshukova-Porezkaya image
  279. Thalassiosira ornata Proshkina-Lavrenko image
  280. Thalassiosira pacifica Gran & Angst image
  281. Thalassiosira partheneia H.J. Schrader image
  282. Thalassiosira parva Proshkina-Lavrenko image
  283. Thalassiosira parvula I.V. Makarova
  284. Thalassiosira patagonica N.I. Maidana
  285. Thalassiosira perispinosa Y. Tanimura
  286. Thalassiosira perpusilla Koslova image
  287. Thalassiosira perpusilla Kozlova image
  288. Thalassiosira perpusilla O.G. Kozlova
  289. Thalassiosira perpusilla O.G. Kozlova {invalid}
  290. Thalassiosira planiuscula_('planisculus') (Rattray) D.M. Harwood & T. Maruyama image
  291. Thalassiosira planiuscula_(`planisculus') (Rattray) D.M. Harwood & T. Maruyama {invalid}
  292. Thalassiosira plicata H.J. Schrader
  293. Thalassiosira plicatoides (R. Simonsen) F. Akiba & Y. Yanagisawa
  294. Thalassiosira polyacantha (Grunow) image
  295. Thalassiosira polychorda (Gran) Jørgensen image
  296. Thalassiosira poro-irregulata G.R. Hasle & Heimdal image
  297. Thalassiosira poroirregulata_(`poro-irregulata') G.R. Hasle & B.R. Heimdal
  298. Thalassiosira poroseriata (E. Ramsfjell) G.R. Hasle
  299. Thalassiosira poroseriata (E. Ramsfjell) G.R. Hasle {invalid}
  300. Thalassiosira poroseriata (Ramsfjell) G.R. Hasle image
  301. Thalassiosira poroseriata (Ramsfjell) G.R. Hasle image
  302. Thalassiosira porosiroides I.V. Makarova
  303. Thalassiosira praeconvexa Burckle image
  304. Thalassiosira praefraga A. Gladenkov & J.A. Barron
  305. Thalassiosira praegracilis R.M. Gogorev & Z.V. Pushina
  306. Thalassiosira praenidulus F. Akiba
  307. Thalassiosira praeoestrupii M.P. Dumont, J.G. Baldauf & J.A. Barron
  308. Thalassiosira praeyabei (H.J. Schrader) F. Akiba & Y. Yanagisawa
  309. Thalassiosira primalabiata A.M. Gombos, Jr.
  310. Thalassiosira profunda (Hendey) G.R. Hasle image
  311. Thalassiosira proschkinae I.V. Makarova
  312. Thalassiosira proschkinae var. spinulata (H. Takano) I.V. Makarova
  313. Thalassiosira pseudomultipora I.V. Makarova
  314. Thalassiosira pseudonana G.R. Hasle & Heimdal image
  315. Thalassiosira pseudonana Hasle & Heimdal
  316. Thalassiosira pulchella H. Takano image
  317. Thalassiosira punctata Jouse image
  318. Thalassiosira punctatus Venkataraman image
  319. Thalassiosira punctifera (Grunow) G. Fryxell, Simonsen & G.R. Hasle image
  320. Thalassiosira punctigera (Castracane) G.R. Hasle image
  321. Thalassiosira ritscheri_('ritscherii') (Hustedt) G.R. Hasle image
  322. Thalassiosira ritscheri_(`ritscherii') (Hustedt) G.R. Hasle
  323. Thalassiosira rosulata H. Takano {invalid}
  324. Thalassiosira rotula Meunier image
  325. Thalassiosira rudis P.I. Tremarin, T.A.V. Ludwig, V. Becker & L.C. Torgan
  326. Thalassiosira rudolfii (Bachmann) G.R. Hasle image
  327. Thalassiosira sackettii G. Fryxell image
  328. Thalassiosira sackettii f. plana G. Fryxell image
  329. Thalassiosira salvadoriana Hustedt image
  330. Thalassiosira sancettae F. Akiba
  331. Thalassiosira sarmatica Hajós image
  332. Thalassiosira saturni Lohmann image
  333. Thalassiosira scotia G. Fryxell & Hoban image
  334. Thalassiosira secreta Yang Li & Y.Q. Guo
  335. Thalassiosira simonsenii G.R. Hasle & G. Fryxell image
  336. Thalassiosira simplex Hustedt image
  337. Thalassiosira singularis Sheshukova-Poretskaya image
  338. Thalassiosira sinica Y. Li & Y.Q. Guo
  339. Thalassiosira solitaria Gayoso image
  340. Thalassiosira spicula Kozlova image
  341. Thalassiosira spicula Kozlova image
  342. Thalassiosira spinoconvexa F. Akiba & Y. Yanagisawa
  343. Thalassiosira spinosa H.J. Schrader image
  344. Thalassiosira spinosa H.J. Schrader {illegitimate}
  345. Thalassiosira spinosa Simonsen image
  346. Thalassiosira spinosa var. aspinosa H.J. Schrader image
  347. Thalassiosira spinulata H. Takano
  348. Thalassiosira spinulata H. Takano {invalid}
  349. Thalassiosira spumellaroides H.J. Schrader image
  350. Thalassiosira stellaris G.R. Hasle & Guillard image
  351. Thalassiosira strelnikovae_(`strelnikoviae') I.V. Makarova
  352. Thalassiosira striata D.M. Harwood & T. Maruyama
  353. Thalassiosira subsalina Proshkina-Lavrenko image
  354. Thalassiosira subtilis (Ostenfeld) Gran image
  355. Thalassiosira subtilis var. fluviatilis_('fluviatitis') Lemmermann image
  356. Thalassiosira subtilis var. maxima M.E. Ferrario
  357. Thalassiosira sundarbana B. Samanta & P. Bhadury
  358. Thalassiosira symbolophora H.J. Schrader
  359. Thalassiosira symmetrica G. Fryxell & G.R. Hasle image
  360. Thalassiosira tcherniae_('Tcherniai') Manguin
  361. Thalassiosira tcherniae_('tcherniai') Manguin image
  362. Thalassiosira tealata H. Takano
  363. Thalassiosira tealata H. Takano {invalid}
  364. Thalassiosira temperei (J. Brun) F. Akiba & Y. Yanagisawa
  365. Thalassiosira tenera Proshkina-Lavrenko image
  366. Thalassiosira tertiaria Sheshukova-Poretskaya image
  367. Thalassiosira tetraoestrupii P. Bodén image
  368. Thalassiosira tetraoestrupii P. Bodén
  369. Thalassiosira tetraoestrupii var. reimeri A.D. Mahood & J.A. Barron
  370. Thalassiosira tetraoestrupii var. reimeri Mahood & J.A. Barron image
  371. Thalassiosira thailandica S. Boonyapiwat
  372. Thalassiosira torokina H.T. Brady
  373. Thalassiosira transitoria Y. Tanimura
  374. Thalassiosira tridens B.B. Niu & Yang Li
  375. Thalassiosira trifulta G. Fryxell image
  376. Thalassiosira trifulta G.A. Fryxell
  377. Thalassiosira tropica Misra image
  378. Thalassiosira tubifera G. Fryxell image
  379. Thalassiosira tumida (Janisch) G.R. Hasle image
  380. Thalassiosira ulna Kozlova image
  381. Thalassiosira umaoiensis F. Akiba
  382. Thalassiosira undulosa (Mann) Sheshukova-Poretskaya image
  383. Thalassiosira urahoroensis F. Akiba
  384. Thalassiosira usatschevii Jouse image
  385. Thalassiosira variabilis Makarova image
  386. Thalassiosira variabilis var. fasciculata Proshkina-Lavrenko image
  387. Thalassiosira variantia M. Shiono
  388. Thalassiosira visurgis Hustedt image
  389. Thalassiosira voeringensis P. Bodén
  390. Thalassiosira vulnifica (Gombos) J.A. Fenner
  391. Thalassiosira webbii_('webbi') D.M. Harwood & T. Maruyama image
  392. Thalassiosira webbii_(`webbi') D.M. Harwood & T. Maruyama
  393. Thalassiosira weissflogii (Grunow ex Van Heurck) G.A. Fryxell & G.R. Hasle
  394. Thalassiosira weissflogii (Grunow) G. Fryxell & G.R. Hasle image
  395. Thalassiosira willei Henckel image
  396. Thalassiosira yabei (T. Kanaya) F. Akiba & Y. Yanagisawa
  397. Thalassiosira yabei (T. Kanaya) F. Akiba & Yanagisawa image
  398. Thalassiosira yunnaniana G.K. Khursevich & J.P. Kociolek
  399. Thalassiosira zabelinae Jousé
  400. Thalassiosira zabelinae Jouse image