Amphora acuta Gregory (1857: 524)

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 : 133

publication ID	https://doi.org/10.11646/phytotaxa.372.2.1
DOI	https://doi.org/10.5281/zenodo.13729093
persistent identifier	https://treatment.plazi.org/id/0392662B-FF8C-2F76-FF61-F3F3FED8FAD9
treatment provided by	Felipe (2024-09-07 04:10:55, last updated by Valdenar 2024-09-09 12:29:10)
scientific name	Amphora acuta Gregory (1857: 524)
status

Treatment

Amphora acuta Gregory (1857: 524) ( Fig. 67 View FIGURES 62–74 )

References: Wachnicka & Gaiser 2007, p. 410, fig. 80, Levkov 2009, pl. 80, figs 1–5.

Features: Length 110–150 μm, width 12–18 μm, striae 14–16 in 10 μm.

Description: Valves semi-elliptical with acutely rounded apices. Dorsal margin arcuate, ventral margin straight or weakly concave. Raphe close to ventral margin. Axial area narrow, central area extends transversely in a form of fascia reaching dorsal margin. Ventral striae indistinct.

Remarks: This species looks similar to Amphora decussata Grunow (1877:178) but valves of the later species are narrower with more concave ventral margin and denser ventral striae.

Ecology and Distribution: A widespread marine littoral species. Not recorded previously from the Gulf. Frequent in Basra corals.

References

Gregory, W. (1857) On new forms of marine Diatomaceae found in the Firth of Clyde and in Loch Fyne. Transactions of the Royal Society of Edinburgh 21: 473 - 542. https: // doi. org / 10.1017 / S 0080456800032269

Grunow, A. (1877) New diatoms from Honduras, with notes by F. Kitton. Monthly Microscopical Journal 18: 165 - 186. https: // doi. org / 10.1111 / j. 1365 - 2818.1877. tb 00123. x

Levkov, Z. (2009) Amphora sensu lato. In: Lange-Bertalot, H. (Ed.) Diatoms of Europe. Diatoms of the European inland waters and comparable habitats. Vol. 5. A. R. G. Ganter Verlag, Konigstein, Germany, Liechtenstein, pp. 916.

Figures

FIGURES 62–74. Marine benthic diatoms in coral reefs off Basra.Fig. 62. Pleurosigma diverse-striatum, Fig. 63. Pleurosigma strigosum, Figs 64, 65. Plagiotropis lepidoptera, Fig. 66. Stauroneis sp., Fig. 67. Amphora arcuata, Fig. 68. Amphora arenaria, Fig. 69. Amphora cf. commutata, Fig. 70. Amphora cingulata, Fig. 71. Halamphora coffeaeformis, Fig. 72. Halamphora costata, Figs 73,74. Amphora graeffeana.