Lyrella lyroides (Hendey) D.G. Mann, 1990

Nevrova, Elena, Witkowski, Andrzej, Kulikovskiy, Maxim, Lange-Bertalot, Horst & Kociolek, J. Patrick, 2013, A revision of the diatom genus Lyrella Karayeva (Bacillariophyta: Lyrellaceae) from the Black Sea, with descriptions of five new species, Phytotaxa 83 (1), pp. 1-38 : 27-28

Lyrella lyroides (Hendey) D.G. Mann in Round et al. (1990: 672) ( Figs 81–85 )

Basionym: Navicula lyroides Hendey (1958: 60 , pl. 5, fig. 3)

Navicula lyra var. elliptica A. Schmidt (1874a : pl. 1, fig. 39 not figs 35, 38), non A. Schmidt (1874–1950: pl. 2, figs 29, 34) nec H. & M. Peragallo (1897 –1908: 133, pl. 23, fig. 4) nec Hendey (1951: 50, pl. 10, fig. 4, 5) nec Cleve-Euler (1953: 106, fig. 710 a)

Navicula elliptica W. Sm. (1853: 48, pl. 17, fig. 152 pro parte)

Navicula lyra var. intermedia H. & M. Peragallo (1897 –1908: 136, pl. 23, figs 6, 7); A. Schmidt (1874–1950: pl. 257, fig. 2) Navicula robertsiana var. recta Amossé (1924: 111 , fig. 3)

Navicula lyra (Ehrenb.) Brockmann (1950: 19 , pl. 3, fig. 15)

Lyrella lyra var. elliptica (A. Schmidt) Guslyakov & Karayeva (1992: 35, pl. 48, figs 6, 7 nom. invalid)

Lyrella lyroides (Hendey) Ryabushko (1991: 14 comb. invalid)

Valves lanceolate, elliptic-lanceolate or oblong-elliptic, with subcuneate, bluntly rounded or weakly produced apices, length 70–210 µm, breadth 30–46 µm. Valve surface striate, striae slightly radiate, punctate, interrupted on both sides of the raphe by extensions of the central area. Lateral area more or less straight or slightly convergent towards the apical nodules. Axial area straight, narrow, between the raphe and the lateral areas short, and towards the apices it becomes reduced to 1–2 areolae.

Distribution:—Known from British coastal waters ( Hendey 1964), and the Mediterranean Sea (H. & M. Peragallo 1897 –1908). Black Sea, Romanian coast ( Bodeanu 1987 –1988, Caraus 2002); Bulgaria ( Temniskova-Topalova & Petrova-Karadjova 1998), North-western region ( Ryabushko 1991, Guslyakov et al. 1992, Guslyakov 2002), Crimean ( Proshkina-Lavrenko 1963a, Guslyakov & Nevrova 1998, Nevrova & Revkov 2003, Nevrova et al. 2003, Nevrova 2010) and Caucasian coasts ( Nevrova 1999b).

Literature:— Smith (1853: 48, pl. 17, fig. 152a non Kützing 1844); Schmidt (1874: pl. 1, fig. 39); Schmidt (1874–1950: pl. 257, fig. 2); H. & M. Peragallo (1897 –1908: 136, pl. 23, fig. 6); Amossé (1924: 111, fig. 3); Hendey (1958: 60, pl. 5, fig. 3); Hendey (1964: 209, pl. 33, fig. 3, 4); Brockmann (1950: 19, pl. 3, fig. 15); Round et al. (1990: 672); Ryabushko (1991: 14, no micrograph); Guslyakov et al. (1992: 35, pl. 48, figs 6, 7)

Figures

FIGURES 81–85: Lyrella lyroides. Figs 81-84: Valve view, LM, scale bar = 10 µm. Specimens from the Black Sea (Omega Bay, Golubaya Bay, Karadag, Vitino coast). Fig. 85: Reproduction of published line-drawing by Hendey (1964: pl. 33: 3, as Navicula lyroides), scale bar = 10 µm.