Tryblionella angustatula Cantonati & Lange-Bert. Tryblionella angustatula Cantonati & Lange-Bert. in Lange-Bertalot, Hofmann & al., Freshwater benthic diatoms of Central Europe. 2017is validated by1 Tryblionella angustatula (Lange-Bert.) Cantonati & Lange-Bert. in Phytotaxa 328: 91. 20171. Art. 41.5