Progonoia musca (W. Gregory) Schrader (1974: 992)

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 : 123-124

Progonoia musca (W. Gregory) Schrader (1974: 992) ( Fig. 32 )

References: Hustedt 1935, pl. 1‒2; Hendey 1964, p. 228, pl. 29, fig. 17; Schrader 1971, pl. 1, figs 1–3, pl. 2, figs 1–4, pl. 3, figs 1, 2, 9, pl. 6, figs 7–13.

Features: Length 46–58 μm, width 16–19 μm, striae 6–7 in 10 μm.

Description: Valves broadly lanceolate, slightly constricted at the center. Raphe branches straight, ending centrally in simple pores. Axial area large, central area small. Transapical striae parallel at the center, strongly radiate near the apices. Areolae transapically dilated.

Remarks: This species has been widely reported as Oestrupia musca (Gregory) Hustedt (1935: 17) .

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

Figures

FIGURES 21–37. Marine benthic diatoms in coral reefs off Basra. Fig. 21. Mastogloia quinquecostata, Fig. 22. Cocconeis latecostata, Fig. 23. Berkeleya scopuloru, Figs 24, 25. Climaconei sp. Fig. 26. Parlibellus rhombiformis, Fig. 27. Parlibellus sp., Fig. 28. Biremis ambigua, Fig. 29. Fallacia forcipata, Fig. 30. Fallacia nummularia, Fig. 31 Fallacia sp., Fig. 32. Progonoia musca, Fig. 33. Caloneis elongata, Fig. 34. Caloneis liber, Fig. 35. Diploneis cf. interrupta, Fig. 36. Diploneis chersonensis, Fig. 37. Diploneis fusca.