Cocconeis dallmannii Al-Handal, Riaux-Gobin, Romero et Wulff

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, Botanica Marina (Warsaw, Poland) 65 (2), pp. 81-103 : 91

publication ID

https://doi.org/ 10.1515/bot-2021-0066

DOI

https://doi.org/10.5281/zenodo.11094447

persistent identifier

https://treatment.plazi.org/id/03C487C5-430C-7378-FCCD-FD8C77B09A24

treatment provided by

Felipe

scientific name

Cocconeis dallmannii Al-Handal, Riaux-Gobin, Romero et Wulff
status

 

Cocconeis dallmannii Al-Handal, Riaux-Gobin, Romero et Wulff ( Figure 50 View Figures 39–59 )

Literature: (Al-Handal et al. 2008, p. 275, figs. 33–47, 49–62). Description: Length 24–30 µm, width 18–22 µm, striae (raphe valve) 10–11 in 10 µm.

Remarks: This species has originally been described from Potter Cove Al-Handal and Wulff (2008b). The observed specimens appeared slightly larger than previously reported with coarser striae on the raphe valve.

Ecology and distribution: A marine benthic and epiphytic species, it has not been reported outside its type locality (Potter Cove). Rare in the examined material.

Cocconeis fasciolata (Ehrenberg) Brown ( Figure 51 View Figures 39–59 ) Literature: ( Riaux-Gobin and Romero 2003, p. 26, figs. 26– 28, pl. 19, figs. 1–11; Scott and Thomas 2005, p. 127, fig. 2 [68 a–d]).

Description: Length 41–48 µm, width 27–32 µm, striae (rapheless valve) 4–5 in 10 µm.

Ecology and distribution: A marine periphytic species. Although it was recorded from North Europe, the species seems more distributed in the Antarctic Peninsula (Scott and Thomas 2005). Frequent in Potter Cove.

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