Cymbella turgidula Grunow, 1996

Silva, Weliton Jose da, Jahn, Regine, Ludwig, Thelma Alvim Veiga, Hinz, Friedel & Menezes, Mariangela, 2015, Typification and taxonomic status re-evaluation of 15 taxon names within the species complex Cymbella affinis / tumidula / turgidula (Cymbellaceae, Bacillariophyta), PhytoKeys 53, pp. 1-25 : 9

Cymbella turgidula Grunow

Cymbella turgidula Grunow, in Schmidt, A. Schmidt’s Atlas Diatom.-Kunde, Pl. 9, Figs 23-26, 1875.

Lectotype.

Plate 9, Fig. 23 in Schmidt (1875), designated by Tuji (2007).

Type locality.

Puerto Rico and Kahyenmathay.

Epitype.

An individual on slide 1504 in the Grunow Collection in the Naturhistorisches Museum Wien (W), designated by Tuji (2007, Fig. 15).

Epitype locality.

Puerto Rico.

Valves lanceolate, dorsiventral, dorsal margins broadly convex and ventral margin convex; ends barely protracted, narrowly rounded, or subcapitate; length 36.5-45.0 µm, breadth 10.8-13.3 µm, L/B ratio 3.2-3.4; axial area linear, arched, central area indistinct to rounded; striae 9-12 in 10 µm, becoming 11-17 toward ends, 1-3 isolated pores; 21-24 punctae in 10 µm.