The diatom genus Gomphoneis Cleve (Bacillariophyceae) from Lake Baikal, Russia Author Kociolek, John P. Museum of Natural History and Department of Ecology and Evolutionary Biology & University of Colorado, Boulder, Colorado, 80309 USA Author Kulikovskiy, Maxim S. I. D. Papanin Institute for Biology of Inland Waters Russian Academy of Sciences, Author Solak, Cüneyt N. Dumlupiner University, Department of Biology, Art & Science Faculty, Kütahya, 431000, Turkey text Phytotaxa 2013 2013-12-17 154 1 1 37 http://dx.doi.org/10.11646/phytotaxa.154.1.1 journal article 10.11646/phytotaxa.154.1.1 1179-3163 5100778 Gomphoneis baicaliana Kociolek & Kulikovskiy , sp. nov. ( Figs 283–286 ) Valves broadly lanceolate-clavate, with both apices broadly rounded. Length 35–60 µm , breadth 9–11 µm . Axial area narrow, expanded into irregularly-expanded central area, with 4–5 shortened striae bordering the central area on either side. Stigmoids wanting. Raphe lateral, with dilated external proximal ends. External distal raphe ends deflect onto mantle, curving well before valve terminus. Costate striae radiate near the center of the valve, becoming parallel to slightly convergent towards the ends. Striae 14–17/ 10 µm . Apical pore fields distinct at the footpole. Septa and pseudosepta present, distinct at the footpole. Type:— RUSSIA : Lake Baikal , Cape Khoboj , stones and algae, 1998, Darwin Initiative sample ( COLO slide for Station 9, number 9, holotype designated here (= Fig. 285 ); IBIW slide no. Station 9, number 9m , isotype) . Observations:— Distinguished by the larger, proportionately broader valves, and the more broadly rounded apices.