Geographic distribution of epilithic diatoms (Bacillariophyceae) in Antarctic lakes, South Shetland Islands, Maritime Antarctica Region Author Ferreira da Silva, Juliana Author Oliveira, Maria Angélica Author Paidano Alves, Rodrigo Author Vestena Cassol, Ana Paula Author Ribeiro da Anunciação, Raylane Author Pereira da Silva, Eduardo Author Schünemann, Adriano Luis Author Batista Pereira, Antônio text Check List 2019 2019-09-20 15 5 797 809 http://dx.doi.org/10.15560/15.5.797 journal article 10.15560/15.5.797 1809-127X Psammothidium abundans (Manguin) Bukhtiyarova & Round Figures 3 (57), 5(7) Morphometric information: length: 7.5–12 μm; width: 3–5 μm; striae in 10 µm: 20–30 Comments: Psammothidium abundans was consid- ered a typical species of Antarctica (Van de Vijver et al. 2008). Since its description, P. abundans has been reported in Antarctic and sub-Antarctic regions.