Nitzschia schweikertii Witkowski, -Bertalot, Ruppel & Kociolek 2004
Nitzschia schweikertii Witkowski, Lange-Bertalot, Ruppel & Kociolek 2004: 589, 590, figs 83-93
Published in: Witkowski, A., Lange-Bertalot, H., Kociolek, J.P., Ruppel, M., Wawrzyniak-Wydrowska, B., Bąk, M. & Brzezinska, A. (2004). Four new species of Nitzschia sect. Tryblionella (Bacillariophyceae) resembling N. parvula. Phycologia 43: 579-595, 93 figs, 4 tables.
Publication date: 30th September, 2004
Status of name
This name is of an entity that is currently accepted taxonomically.
Type locality: Tiwi Beach, Kenya, Indian Ocean (Witkowski & al., 2004: 589). Holotype: USA Slide CAS 619570 (Witkowski & al., 2004: 589). Notes: Isotypes: Prep. No. 5733 in coll. Andrzej Witkowski, Institute of Marine Sciences, University of Szczecin, Poland; CAS slides 488059, 499060.
No synonyms are currently included in AlgaeBase.
This is a marine species.
Valves nearly linear, slightly panduriform, with cuneate apices, 34-38 µm long, 4.5-6.5 µm wide. The valve surface of N. schweikertii is flat, bearing a keeled raphe at one side and a shallow mantle at the opposite side. Raphe strongly eccentric, fibulae distinct, 12-13 in 10 µm, the median two father apart. The fibulae are somewhat variable in size but mostly relatively narrow; each is in contact with two transapical costae. Transapical striae uniseriate, well developed in the marginal part of the valve, finely punctate, 28-30 in 10 µm. The striae are composed of round poroids of variable size. The striae adjacent to both the proximal and distal sides are composed of several areolae. The stria-forming areolae are elliptical externally but slit-like internally. A relatively broad sternum interrupts the striae.
Created: 16 November 2004 by Sandy Lawson
Verified by: 20 April 2006 by G.M. Guiry
Accesses: This record has been accessed by users 323 times since it was created.
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Linking to this page: http://www.algaebase.org/search/species/detail/?species_id=65896
Cite this record as:
Guiry, M.D. & Guiry, G.M. 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 19 September 2021.