Published May 15, 2026
| Version v1
Taxonomic treatment
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Shionodiscus endoseriatus Alverson, Kang & Theriot
Authors/Creators
- 1. Institute for Multidisciplinary Ecological Research in the Salish Sea, Galiano Island, Canada & Advanced Microscopy Facility, Bob Wright Centre, University of Victoria, Victoria, Canada
- 2. Institute for Multidisciplinary Ecological Research in the Salish Sea, Galiano Island, Canada
- 3. Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, Canada
- 4. Hakai Institute, Heriot Bay, Canada & Department of Botany and Biodiversity Research Centre, University of British Columbia, Vancouver, Canada
- 5. University of Alberta, Edmonton, Canada & Institute for Multidisciplinary Ecological Research in the Salish Sea, Galiano Island, Canada
Description
Shionodiscus endoseriatus (Hasle & Fryxell) Alverson, Kang & Theriot
Thalassiosira endoseriata Fryxell and Hasle (1977): 78, pl. 8, figs. 45–49 — Fryxell and Hasle (1980); Rivera Ramírez (1981): 68, figs. 145–157; Mahood et al. (1986): 146, fig. 91; Hasle and Syvertsen (1997): 81, 82, pl. 13; Guiry and Guiry (2025).
Shionodiscus endoseriatus — Alverson et al. (2006); Wilks and Armand (2017).
Description
Diameter 30.0–54.1 (20–60) µm. Valve face flat or slightly convex. Irregular ring of 8–10 (4–14) central fultoportulae. Rimoportula is 7 (6) areolae from the margin towards centre of valve. Areolae usually fasciculate, 8–12 (11–18) in 10 μm at valve centre. MFP 6–8 (5–6) in 10 µm and extending into interior of frustule.
Notes
Specimens from the Strait of Georgia conform well with the published data. iNaturalist ID: 259613928 (Fig. 32).
Notes
Published as part of Webber, Mark, Humphrey, Elaine, van Asselt, Arjan, Chang, Alice, Morien, Evan & Simon, Andrew D. F., 2026, Diatoms (Bacillariophyta) of the Salish Sea, Northeast Pacific: annotated checklist and new species reports, pp. e 189060 in Biodiversity Data Journal 14 on page e189060, DOI: 10.3897/BDJ.14.e189060
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Linked records
Additional details
Identifiers
Related works
- Is part of
- Journal article: 10.3897/BDJ.14.e189060 (DOI)
- Journal article: http://publication.plazi.org/id/7EEC96E29628567F973BC24E243B2259 (URL)
- Is source of
- https://biodiversitypmc.sibils.org/collections/plazi/656DC94B82EE5DC4882ACFDA9C7CF387 (URL)
Biodiversity
- Scientific name authorship
- Alverson, Kang & Theriot
- Kingdom
- Chromista
- Phylum
- Ochrophyta
- Order
- Thalassiosirales
- Family
- Thalassiosiraceae
- Genus
- Shionodiscus
- Species
- endoseriatus
- Taxon rank
- species
References
- Fryxell G. A., Hasle G. R. 1977 The genus Thalassiosira: species with a modified ring of central strutted processes Simonsen R. Proceedings from the fourth symposium on recent and fossil marine diatoms, Oslo, August 30 – September 3, 1976 Beihefte zur Nova Hedwigia 54 J. Cramer Vaduz, Liechtenstein 414
- Fryxell G. A., Hasle G. R. 1980 The marine diatom Thalassiosira oestrupii: structure, taxonomy and distribution American Journal of Botany 67 5 804 814 10.1002/j.1537-2197.1980.tb07709.x
- Rivera Ramírez P. 1981 Beiträge zur Taxonomie und Verbreitung der Gattung Thalassiosira Cleve (Bacillariophyceae) in den Küstengewässern Chiles Bibliotheca Phycologica 56 J. Cramer Vaduz, Liechtenstein 222
- Mahood A. D., Fryxell G. A., Mcmillan M. 1986 The diatom genus Thalassiosira: species from the San Francisco Bay system Proceedings of the California Academy of Sciences 44 8 127 156
- Hasle G. R., Syvertsen E. E. 1997 Marine diatoms Thomas C. R. Identifying marine phytoplankton Academic Press San Diego, USA 874 10.17031/1629
- Guiry M. D., Guiry G. M. AlgalBase https://www.algaebase.org2025-10-20T00:46:21+00:00
- Alverson A. J., Kang S. H., Theriot E. C. 2006 Cell wall morphology and systematic importance of Thalassiosira ritscheri, with a description of Shionodiscus gen. nov Diatom Research 21 2 215 262 10.1080/0269249X.2006.9705667
- Wilks J. V., Armand L. K. 2017 Diversity and taxonomic identification of Shionodiscus spp. in the Australian sector of the Subantarctic Zone Diatom Research 32 3 295 307 10.1080/0269249X.2017.1365015