Tetramphora ostrearia (Brébisson) Mereschkowsky (1903: 54)

Al-Handal, Adil Y., Thomas, Evan W. & Pennesi, Chiara, 2018, Marine benthic diatoms in the newly discovered coral reefs, off Basra coast, Southern Iraq, Phytotaxa 372 (2), pp. 111-152 : 138

publication ID

https://doi.org/ 10.11646/phytotaxa.372.2.1

persistent identifier

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Felipe (2024-09-07 04:10:55, last updated by Valdenar 2024-09-09 12:29:10)

scientific name

Tetramphora ostrearia (Brébisson) Mereschkowsky (1903: 54)
status

 

Tetramphora ostrearia (Brébisson) Mereschkowsky (1903: 54) ( Figs 85, 86 View FIGURES 75–90 )

References: Podzorski & Håkansson, 1987, Pl. 16, figs 1, 2; Witkowski et al., 2000, p. 146, pl. 170, fig. 23; Hein et al., 2008, pl. 21, figs 2, 7; pl. 22, fig. 1. (All as Amphora ostrearia Brébisson ex Kützing 1849: 94 ).

Features: Length 40–58 μm, width 8–10 μm, striae 14–16 in 10 μm on the dorsal side, 18–20 on the ventral side.

Description: valves dorsiventral, semi-eliptic with acutely rounded apices. Dorsal margin arched, ventral margin straight. Axial area narrow, central area expands towards dorsal margin forming narrow fascia. Raphe biarcuate, proximal endings bent dorsally. Striae on dorsal side distinctly punctate.

Remarks: Observed specimens appeared rather smaller with slightly denser striae than those reported from the Gulf (Al-Yamani & Saburova 2011) or elsewhere ( Witkowski et al. 2000). Several varieties of Amphora ostrearia have been described based on the number of striae bands on the ventral margin and the shape or structure of the stauros.

Ecology and Distribution: Widely distributed marine species. Previously reported from the Gulf (Al-Yamani & Saburova 2011). Frequent in Basra corals.

Hein, M. K., Winsborough, B. M. & Sullivan, M. J. (2008) Bacillariophyta (diatoms) of the Bahamas. Iconographia Diatomologica 19: 1 - 303.

Kutzing, F. T. (1849) Species algarum. F. A. Brockhaus, Lipsiae, 922 pp.

Podzorski, A. C. & Hakansson, H. (1987) Freshwater and marine diatoms from Palawan (Philippine Island). Bibliotheca Diatomologica 13: 1 - 245.

Witkowski, A., Lange-Bertalot, H. & Metzeltin, D. (2000) Diatom Flora of Marine Coasts Iconographia Diatomologica 7: 1 - 925.

Gallery Image

FIGURES 75–90. Marine benthic diatoms in coral reefs off Basra. Figs 75, 76. Amphora grevilleana, Figs 77, 78. Amphora janischii, Figs 79, 80. Amphora maletracta var. constricta, Fig. 81. Amphora marina, Fig. 82. Amphora mexicana, Figs 83, 84. Amphora ocellata, Figs 85,86. Tetramphora ostrearia, Figs 87,88. Tetramphora rhombica, Fig. 89. Amphora spectabilis, Fig. 90. Amphora sp.

Kingdom

Chromista

Phylum

Ochrophyta

Class

Bacillariophyceae

Genus

Tetramphora