163,329 species and infraspecific names are in the database, 22,769 images, 62,933 bibliographic items, 478,466 distributional records.

Nitzschia schweikertii Witkowski, Lange-Bertalot, Ruppel & Kociolek 2004

Publication details
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.
 Download PDF

Publication date: 30th September, 2004

Type species
The type species (holotype) of the genus Nitzschia is Nitzschia elongata Hassal.

Status of name
This name is of an entity that is currently accepted taxonomically.

Type information
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.

Synonym(s)
No synonyms are currently included in AlgaeBase.

General environment
This is a marine species.

Description
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.

Similar species
Nitzschia parvula

Detailed distribution with sources (Click to Load)

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.

Verification of data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.

Linking to this page: http://www.algaebase.org/search/species/detail/?species_id=65896

Citing AlgaeBase
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.

SITE © 1996 - 2021 M.D. Guiry. All rights reserved.

Website Design : 249 Design Studio