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Synedra ulna (Nitzsch) Ehrenberg, 1832

149187 (urn:lsid:marinespecies.org:taxname:149187)

  1. Biota
  2. Chromista (Kingdom)
  3. Heterokontophyta (Phylum)
  4. Bacillariophytina (Subphylum)
  5. Bacillariophyceae (Class)
  6. Fragilariophycidae (Subclass)
  7. Fragilariophycanae (Superorder)
  8. Fragilariales (Order)
  9. Fragilariaceae (Family)
  10. Synedra (Genus)
  11. Synedra ulna (Species)
accepted
Species
Synedra C.G. Ehrenberg, 1830

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  1. Variety Synedra ulna var. anhuiensis Yang, 1990
  2. Variety Synedra ulna var. delicatula (Ant.Mayer) A.D.Hardy ex Townsend in Townsend & Guiry, 2020
  3. Variety Synedra ulna var. repanda Wang & You in You et al., 2008
  4. Variety Synedra ulna var. ulna (Nitzsch) Ehrenberg, 1836
  5. Forma Synedra ulna f. acicularis (Meister) Woodhead & Tweed, 1954 accepted as Synedra longissima var. acicularis Meister, 1912 (uncertain > unassessed)
  6. Forma Synedra ulna f. amphirhynchus (Ehrenberg) Skabichevskii, 1960 accepted as Synedra amphirhynchus var. amphirhynchus Ehrenberg, 1843 (uncertain > unassessed)
  7. Forma Synedra ulna f. arcuata Cleve-Euler, 1934 (uncertain > unassessed)
  8. Forma Synedra ulna f. arcuata Østrup, 1918 (1920) (uncertain > unassessed)
  9. Forma Synedra ulna f. balatonis (Pantocsek) Cleve-Euler, 1953 accepted as Synedra balatonis f. balatonis Pantocsek, 1902 (uncertain > unassessed)
  10. Forma Synedra ulna f. balatonis (Pantocsek) Cleve-Euler in Backman & Cleve-Euler, 1922 accepted as Synedra balatonis f. balatonis Pantocsek, 1902 (uncertain > unassessed)
  11. Forma Synedra ulna f. biceps (Kützing) Hustedt, 1957 accepted as Synedra biceps f. biceps Kützing, 1844 (uncertain > unassessed)
  12. Forma Synedra ulna f. biceps (Kützing) Skabichevskii, 1960 accepted as Synedra biceps f. biceps Kützing, 1844 (uncertain > unassessed)
  13. Forma Synedra ulna f. bicurvata (Biene) Mayer, 1919 accepted as Synedra bicurvata Biene ex Rabenhorst, 1864 (uncertain > unassessed)
  14. Forma Synedra ulna f. biwensis Skvortzow & Noda, 1971 (uncertain > unassessed)
  15. Forma Synedra ulna f. brevis Van Heurck, 1881 (uncertain > unassessed)
  16. Forma Synedra ulna f. capitata (Ehrenberg) Skabichevskii, 1960 accepted as Synedra capitata f. capitata Ehrenberg, 1836 (uncertain > unassessed)
  17. Forma Synedra ulna f. clavata A. Berg, 1945 (uncertain > unassessed)
  18. Forma Synedra ulna f. communis Skvortzow ex Skvortzow, 1971 (uncertain > unassessed)
  19. Forma Synedra ulna f. constricta Skvortzow, 1938 (uncertain > unassessed)
  20. Forma Synedra ulna f. constricta Mayer, 1913 (uncertain > unassessed)
  21. Forma Synedra ulna f. continua Cleve-Euler, 1932 (uncertain > unassessed)
  22. Forma Synedra ulna f. contracta Hustedt, 1930 (uncertain > unassessed)
  23. Forma Synedra ulna f. crassa (Østrup) Cleve-Euler, 1953 accepted as Synedra ulna var. crassa Østrup, 1910 (uncertain > unassessed)
  24. Forma Synedra ulna f. curta (Skvortzow) Skvortzow, 1946 (uncertain > unassessed)
  25. Forma Synedra ulna f. curta Skvortzow, 1928 (uncertain > unassessed)
  26. Forma Synedra ulna f. curvata (Pantocsek) M. Peragallo, 1903 (uncertain > unassessed)
  27. Forma Synedra ulna f. danica (Kützing) Hustedt, 1957 accepted as Synedra danica Kützing, 1844 (uncertain > unassessed)
  28. Forma Synedra ulna f. fonticola Hustedt, 1937 (uncertain > unassessed)
  29. Forma Synedra ulna f. genuina Schell, 1883 (uncertain > unassessed)
  30. Forma Synedra ulna f. genuina Grunow, 1862 (uncertain > unassessed)
  31. Forma Synedra ulna f. impressa (Hustedt in Schmidt et al.) Hustedt, 1957 accepted as Synedra ulna var. impressa Hustedt, 1921 (uncertain > unassessed)
  32. Forma Synedra ulna f. inflata Maillard, 1961 (uncertain > unassessed)
  33. Forma Synedra ulna f. joursacensis (Heribaud) Cleve-Euler, 1953 accepted as Synedra joursacensis Héribaud-Joseph, 1903 (uncertain > unassessed)
  34. Forma Synedra ulna f. joursacensis Cleve-Euler in Backman & Cleve-Euler, 1922 (uncertain > unassessed)
  35. Forma Synedra ulna f. lanceolata Alexenko, 1892 (uncertain > unassessed)
  36. Forma Synedra ulna f. lanceolata Grunow, 1862 (uncertain > unassessed)
  37. Forma Synedra ulna f. latestriata Østrup, 1908 (uncertain > unassessed)
  38. Forma Synedra ulna f. latior Elenkin, 1914 (uncertain > unassessed)
  39. Forma Synedra ulna f. longior Van Heurck, 1881 (uncertain > unassessed)
  40. Forma Synedra ulna f. longirostris Grunow in Van Heurck, 1881 (uncertain > unassessed)
  41. Forma Synedra ulna f. longissima (W. Smith) Abshagen, 1908 accepted as Synedra longissima var. longissima W. Smith, 1853 (uncertain > unassessed)
  42. Forma Synedra ulna f. marina Rabenhorst, 1864 (uncertain > unassessed)
  43. Forma Synedra ulna f. medioconstricta (Forti) Hustedt, 1932 (uncertain > unassessed)
  44. Forma Synedra ulna f. mediocontracta Komarenko, 1956 (uncertain > unassessed)
  45. Forma Synedra ulna f. mesocampa (Brébisson in Kützing) Rabenhorst, 1864 accepted as Synedra mesocampa Brébisson in Kützing, 1849 (uncertain > unassessed)
  46. Forma Synedra ulna f. minor Brun, 1901 (uncertain > unassessed)
  47. Forma Synedra ulna f. mongolica Skvortzow, 1928 (uncertain > unassessed)
  48. Forma Synedra ulna f. notata Grunow in Van Heurck, 1881 (uncertain > unassessed)
  49. Forma Synedra ulna f. oxyrhynchus (Kützing) Van Heurck, 1885 accepted as Synedra oxyrhynchus var. oxyrhynchus Kützing, 1844 (uncertain > unassessed)
  50. Forma Synedra ulna f. pantocsekii Cleve-Euler, 1953 (uncertain > unassessed)
  51. Forma Synedra ulna f. pygmaea Mayer, 1913 (uncertain > unassessed)
  52. Forma Synedra ulna f. recta (Kützing) Ross, 1947 accepted as Synedra biceps var. recta Kützing, 1844 (uncertain > unassessed)
  53. Forma Synedra ulna f. rostrata Mayer, 1913 (uncertain > unassessed)
  54. Forma Synedra ulna f. rostrata (Pantocsek) Cleve-Euler, 1953 (uncertain > unassessed)
  55. Forma Synedra ulna f. rostrata (Pantocsek) Cleve-Euler in Backman & Cleve-Euler, 1922 (uncertain > unassessed)
  56. Forma Synedra ulna f. salina (W. Smith) West & West, 1901 accepted as Synedra salina W. Smith, 1853 accepted as Ulnaria salina (W. Sm.) Gogorev, 2018 (uncertain > unassessed)
  57. Forma Synedra ulna f. spathulifera (Grunow in Van Heurck) Grunow in Van Heurck, 1885 accepted as Synedra spathulifera Grunow, 1881 (uncertain > unassessed)
  58. Forma Synedra ulna f. spatulifera (Grunow) Skabichevskii, 1960 (uncertain > unassessed)
  59. Forma Synedra ulna f. splendens (Kützing) Van Heurck, 1885 accepted as Synedra splendens var. splendens Kützing, 1844 (uncertain > unassessed)
  60. Forma Synedra ulna f. splendens Chmielevski, 1885 (uncertain > unassessed)
  61. Forma Synedra ulna f. staurodestituta (Pantocsek) Cleve-Euler, 1953 (uncertain > unassessed)
  62. Forma Synedra ulna f. staurodestituta Pantocsek, 1902 (uncertain > unassessed)
  63. Forma Synedra ulna f. strumosa Otto Müller, 1910 (uncertain > unassessed)
  64. Forma Synedra ulna f. strumosa Otto Müller, 1910 (uncertain > unassessed)
  65. Forma Synedra ulna f. subaequalis Grunow in Van Heurck, 1881 (uncertain > unassessed)
  66. Forma Synedra ulna f. subconstricta Mayer, 1912 (uncertain > unassessed)
  67. Forma Synedra ulna f. typica Cleve-Euler, 1953 (uncertain > unassessed)
  68. Forma Synedra ulna f. typica Cleve-Euler, 1953 (uncertain > unassessed)
  69. Forma Synedra ulna f. typica Cleve-Euler, 1953 (uncertain > unassessed)
  70. Forma Synedra ulna f. typica Gemeinhardt, 1926 (uncertain > unassessed)
  71. Forma Synedra ulna f. typica Mayer, 1913 (uncertain > unassessed)
  72. Forma Synedra ulna f. ulna (Nitzsch) Ehrenberg, 1832 accepted as Bacillaria ulna Nitzsch, 1817 (uncertain > unassessed)
  73. Forma Synedra ulna f. undulata Limanowska, 1912 (uncertain > unassessed)
  74. Forma Synedra ulna f. valvis (uncertain > unassessed)
  75. Forma Synedra ulna f. valvisundulatis Rabenhorst, 1864 (uncertain > unassessed)
  76. Forma Synedra ulna f. vitrea (Kützing) Kurz, 1922 accepted as Synedra vitrea f. vitrea Kützing, 1844 (uncertain > unassessed)
  77. Subspecies Synedra ulna subsp. acutissima Skvortzov, 2012 (uncertain)
  78. Variety Synedra ulna var. abiskoensis Foged, 1953 (uncertain > unassessed)
  79. Variety Synedra ulna var. actinastroides Lemmermann, 1898 (uncertain > unassessed)
  80. Variety Synedra ulna var. acuminata Carruthers, 1864 (uncertain > unassessed)
  81. Variety Synedra ulna var. acus Mayer, 1913 (uncertain > unassessed)
  82. Variety Synedra ulna var. acutissima Skvortzow, 1971 (uncertain > unassessed)
  83. Variety Synedra ulna var. aequalis (Kützing) Hustedt, 1930 accepted as Frustulia aequalis Kützing, 1833 (uncertain > unassessed)
  84. Variety Synedra ulna var. aequalis (Kützing) Brun, 1880 accepted as Frustulia aequalis Kützing, 1833 (uncertain > unassessed)
  85. Variety Synedra ulna var. africana Meister ex Huber-Pestalozzi, 1929 (uncertain > unassessed)
  86. Variety Synedra ulna var. amphirhynchus (Ehrenberg) Grunow, 1862 accepted as Synedra amphirhynchus var. amphirhynchus Ehrenberg, 1843 (uncertain > unassessed)
  87. Variety Synedra ulna var. andina Manguin, 1964 (uncertain > unassessed)
  88. Variety Synedra ulna var. biceps (Kützing) Kirchner, 1878 accepted as Synedra biceps f. biceps Kützing, 1844 (uncertain > unassessed)
  89. Variety Synedra ulna var. biceps (Kützing) Kirchner accepted as Synedra biceps f. biceps Kützing, 1844 (uncertain > unassessed)
  90. Variety Synedra ulna var. bicurvata (Biene) Grunow, 1881 (uncertain > unassessed)
  91. Variety Synedra ulna var. bilunaris (Ehrenberg; Ehrenberg) Brun, 1880 accepted as Synedra bilunaris var. bilunaris Ehrenberg, 1832 (uncertain > unassessed)
  92. Variety Synedra ulna var. bipes Beling et al., 1936 (uncertain > unassessed)
  93. Variety Synedra ulna var. calcarea Rochoux d'Aubert in Heribaud et al., 1920 (uncertain > unassessed)
  94. Variety Synedra ulna var. capitata Cleve, 1891 (uncertain > unassessed)
  95. Variety Synedra ulna var. chaseana Thomas, 1886 (uncertain > unassessed)
  96. Variety Synedra ulna var. claviceps Hustedt, 1937 (uncertain > unassessed)
  97. Variety Synedra ulna var. constricta Venkataraman, 1939 (uncertain > unassessed)
  98. Variety Synedra ulna var. contracta Østrup, 1901 (uncertain > unassessed)
  99. Variety Synedra ulna var. crassa Venkataraman, 1957 (uncertain > unassessed)
  100. Variety Synedra ulna var. crassa Østrup, 1910 (uncertain > unassessed)
  101. Variety Synedra ulna var. crassa Pantocsek, 1913 (uncertain > unassessed)
  102. Variety Synedra ulna var. crystallina Lagerstedt (uncertain > unassessed)
  103. Variety Synedra ulna var. curta A.Mayer, 1912 (uncertain > unassessed)
  104. Variety Synedra ulna var. curta M. Peragallo in Héribaud et al., 1920 (uncertain > unassessed)
  105. Variety Synedra ulna var. danica Cleve-Euler, 1932 (uncertain > unassessed)
  106. Variety Synedra ulna var. debilis (Rabenhorst) (uncertain > unassessed)
  107. Variety Synedra ulna var. dorsiventralis (Otto Müller) Cholnoky, 1953 accepted as Synedra dorsiventralis f. dorsiventralis Otto Müller, 1910 (uncertain > unassessed)
  108. Variety Synedra ulna var. fonticola Hustedt, 1937 (uncertain > unassessed)
  109. Variety Synedra ulna var. fossilis Pantocsek, 1892 (uncertain > unassessed)
  110. Variety Synedra ulna var. genuina Kirchner, 1878 (uncertain > unassessed)
  111. Variety Synedra ulna var. impressa Hustedt, 1921 (uncertain > unassessed)
  112. Variety Synedra ulna var. intermedia Mereschkowsky, 1906 (uncertain > unassessed)
  113. Variety Synedra ulna var. interrupta (Auerswald in Rabenhorst) M. Peragallo, 1903 accepted as Synedra interrupta Auerswald in Rabenhorst, 1855 (uncertain > unassessed)
  114. Variety Synedra ulna var. jeniseyensis Skvortzow, 1971 (uncertain > unassessed)
  115. Variety Synedra ulna var. joursacensis (Heribaud) Mayer, 1939 accepted as Synedra joursacensis Héribaud-Joseph, 1903 (uncertain > unassessed)
  116. Variety Synedra ulna var. lanceolata (Kützing) van Heurck, 1885 accepted as Synedra lanceolata f. lanceolata Kützing, 1844 (uncertain > unassessed)
  117. Variety Synedra ulna var. longirostris (Grunow in Van Heurck) Cleve-Euler, 1948 (uncertain > unassessed)
  118. Variety Synedra ulna var. longissima (W.Smith) Brun, 1880 accepted as Synedra longissima var. longissima W. Smith, 1853 (uncertain > unassessed)
  119. Variety Synedra ulna var. longissima Grunow in Van Heurck, 1884 (uncertain > unassessed)
  120. Variety Synedra ulna var. marina (Rabenhorst) H. Peragallo, 1889 (uncertain > unassessed)
  121. Variety Synedra ulna var. minima Musafarov, 1952 (uncertain > unassessed)
  122. Variety Synedra ulna var. obtusa (W.Smith) Van Heurck, 1885 accepted as Synedra obtusa W.Smith, 1853 (uncertain > unassessed)
  123. Variety Synedra ulna var. oxyrhynchus (Kützing) O'Meara, 1875 accepted as Synedra oxyrhynchus var. oxyrhynchus Kützing, 1844 (uncertain > unassessed)
  124. Variety Synedra ulna var. oxyrhynchus auct. non Hustedt (uncertain > unassessed)
  125. Variety Synedra ulna var. parasitica Kisselev, 1959 (uncertain > unassessed)
  126. Variety Synedra ulna var. platycephala Manguin, 1964 (uncertain > unassessed)
  127. Variety Synedra ulna var. ramesi (Héribaud-Joseph) Hustedt, 1903 accepted as Synedra ramesi Héribaud-Joseph, 1903 (uncertain > unassessed)
  128. Variety Synedra ulna var. robusta M. Peragallo, 1920 (uncertain > unassessed)
  129. Variety Synedra ulna var. rostrata Tempère & Peragallo, 1909 (uncertain > unassessed)
  130. Variety Synedra ulna var. salina (W.Smith) W.Smith accepted as Synedra salina W. Smith, 1853 accepted as Ulnaria salina (W. Sm.) Gogorev, 2018 (uncertain > unassessed)
  131. Variety Synedra ulna var. siamense Hirano, 1967 (uncertain > unassessed)
  132. Variety Synedra ulna var. sibirica Skvortzov, 2012 (uncertain)
  133. Variety Synedra ulna var. spathulata Hustedt (uncertain > unassessed)
  134. Variety Synedra ulna var. spathulifera Manguin, 1964 (uncertain > unassessed)
  135. Variety Synedra ulna var. spathulifera sensu Cleve-Euler in Backman & Cleve-Euler, 1922 (uncertain > unassessed)
  136. Variety Synedra ulna var. splendens Brun, 1880 (uncertain > unassessed)
  137. Variety Synedra ulna var. splendens (Kützing) Kirchner, 1878 accepted as Frustulia splendens Kützing, 1833 (uncertain > unassessed)
  138. Variety Synedra ulna var. subaequalis (Grunow) van Heurck, 1885 accepted as Synedra subaequalis f. subaequalis Grunow in Van Heurck, 1881 (uncertain > unassessed)
  139. Variety Synedra ulna var. subaequalis Skvortzow, 1971 (uncertain > unassessed)
  140. Variety Synedra ulna var. subaequalis Skvortzov, 1975 (uncertain > unassessed)
  141. Variety Synedra ulna var. subaequalis Fritsch & Rich, 1929 (uncertain > unassessed)
  142. Variety Synedra ulna var. subcontracta Østrup in Héribaud et al., 1920 (uncertain > unassessed)
  143. Variety Synedra ulna var. tenuirostris Hustedt, 1937 (uncertain > unassessed)
  144. Variety Synedra ulna var. tenuirostris Skvortzow, 1938 (uncertain > unassessed)
  145. Variety Synedra ulna var. tergestina (Kützing) Rabenhorst, 1847 accepted as Synedra tergestina Kützing, 1844 (uncertain > unassessed)
  146. Variety Synedra ulna var. thalheimii Kirchner, 1878 (uncertain > unassessed)
  147. Variety Synedra ulna var. tolstensis Rattray, 1888 (uncertain > unassessed)
  148. Variety Synedra ulna var. typica Meister (uncertain > unassessed)
  149. Variety Synedra ulna var. ulna (W. Smith) W. & G. S. West, 1901 (uncertain > unassessed)
  150. Variety Synedra ulna var. undata (uncertain > unassessed)
  151. Variety Synedra ulna var. undulata Grunow, 1862 (uncertain > unassessed)
  152. Variety Synedra ulna var. valvisundulatis Belloc, 1887 (uncertain > unassessed)
  153. Variety Synedra ulna var. vasta Pantocsek, 1902 (uncertain > unassessed)
  154. Variety Synedra ulna var. danica (Kützing) Grunow, 1885 accepted as Ulnaria danica (Kützing) Compère & Bukhtiyarova, 2006 accepted as Synedra danica Kützing, 1844 (synonym)
  155. Variety Synedra ulna var. splendens (Kützing) Van Heurck, 1885 accepted as Ulnaria ulna var. splendens (Kützing) M.Aboal, 2003 accepted as Frustulia splendens Kützing, 1833 (Synonym)
marine, brackish, fresh, terrestrial
recent only
(of Bacillaria ulna Nitzsch, 1817) Nitzsch, C.L. (1817). Beitrag zur Infusorienkunde oder Naturbeschreibung der Zerkarien und Bazillarien. Neue Schriften der naturforschenden Gesellschaft zu Halle. Hindel's Verlag, Halle, 3(1): 128 pp., 6 pls.
page(s): p. 99; pl. 5, fig. 1-10 [details] 
Distribution geographic region not obtained; recorded as being found in the Bay of Fundy  
Distribution geographic region not obtained; recorded as being found in the Bay of Fundy [details]
Kociolek, J.P.; Blanco, S.; Coste, M.; Ector, L.; Liu, Y.; Karthick, B.; Kulikovskiy, M.; Lundholm, N.; Ludwig, T.; Potapova, M.; Rimet, F.; Sabbe, K.; Sala, S.; Sar, E.; Taylor, J.; Van de Vijver, B.; Wetzel, C.E.; Williams, D.M.; Witkowski, A.; Witkowski, J. (2026). DiatomBase. Synedra ulna (Nitzsch) Ehrenberg, 1832. Accessed at: https://www.diatombase.org/aphia.php?p=taxdetails&id=149187 on 2026-10-10
Date
action
by
2005-03-30 08:52:46Z
created
db_admin
2005-07-20 07:04:33Z
changed
Espinel, Nadjejda

original description (of Bacillaria ulna Nitzsch, 1817) Nitzsch, C.L. (1817). Beitrag zur Infusorienkunde oder Naturbeschreibung der Zerkarien und Bazillarien. Neue Schriften der naturforschenden Gesellschaft zu Halle. Hindel's Verlag, Halle, 3(1): 128 pp., 6 pls.
page(s): p. 99; pl. 5, fig. 1-10 [details] 

additional source Hällfors, G. (2004). Checklist of Baltic Sea Phytoplankton Species (including some heterotrophic protistan groups). <em>Baltic Sea Environment Proceedings.</em> No. 95: 210 pp., available online at http://helcom.fi/Lists/Publications/BSEP95.pdf [details] Available for editors  PDF available [request]

additional source Integrated Taxonomic Information System (ITIS). , available online at http://www.itis.gov [details] 

additional source Krayesky, D. M.; Meave, D. C.; Zamudio, E.; Norris, E.; Fredericq, S.; Tunnell, J. (2009). Diatoms (Bacillariophyta) of the Gulf of Mexico. <em>Gulf of Mexico origin, waters, and biota.</em> 1: 155-186. [details] Available for editors  PDF available [request]

additional source Linkletter, L. E. (1977). A checklist of marine fauna and flora of the Bay of Fundy. <em>Huntsman Marine Laboratory, St. Andrews, N.B.</em> 68: p. [details] 
 
 Present  Inaccurate  Introduced: alien  Containing type locality 
   

Unreviewed
Diet phytosynthetic [details]

Distribution geographic region not obtained; recorded as being found in the Bay of Fundy [details]

Habitat pelagic or attached to various marine life [details]

Importance most abundant phylum of algae [details]

Morphology yellow brown in color, not green [details]

Predators marine microorganisms and animal larvae [details]

Reproduction general for group: both sexual and asexual [details]
To Barcode of Life 
To Biodiversity Heritage Library (311 publications) 
To PESI 
To ITIS
Unreviewed
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