Thalassionema nitzschioides Mereschkowsky

• Main Authors: Al-Handal, Adil Y., Torstensson, Anders, Wulff, Angela
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2022
• Subjects: Biodiversity; Taxonomy; Chromista; Ochrophyta; Bacillariophyceae; Thalassionematales; Thalassionemataceae; Thalassionema; Thalassionema nitzschioides; Antarc*; Antarctic; Antarctica; King George Island
• Online Access: https://doi.org/10.5281/zenodo.11000195; http://treatment.plazi.org/id/03C487C54301737AFCEFFA8672E09E48

Thalassionema nitzschioides (Grunow) Mereschkowsky (Figure 35) Literature: (Scott and Thomas 2005, p. 144, fig. 2.80a–d). Description: Length 31–36 µm, width 2.5–3 µm, striae (single areole) 10–11 in 10 µm. Remarks: Images of this species shown in Scott and Thomas (2005) from Antarctic material appear with rather different lanceolate valves and subcapitate apices and may belong to a different taxon. Valves of T. nitzschioides have almost parallel margins and rounded apices. Heiden in Heiden and Kolbe (1928) described several varieties in material collected from Antarctica based mostly on variations in valve outline. According to Hustedt (1958), these varieties may have no taxonomic validity. In the present work, only the nominate variety is considered. Ecology and distribution: A widely distributed marine planktonic species from the Arctic to Antarctica (Hasle 2001). Rare in Potter Cove. Published as part of Al-Handal, Adil Y., Torstensson, Anders & Wulff, Angela, 2022, Revisiting Potter Cove, King George Island, Antarctica, 12 years later: new observations of marine benthic diatoms, pp. 81-103 in Botanica Marina (Warsaw, Poland) (Warsaw, Poland) 65 (2) on pages 88-89, DOI:10.1515/bot-2021-0066, http://zenodo.org/record/11000147