Pseudostaurosira santaremensis (Metzeltin & Lange-Bert.) E.Morales, Grana, L. & Maidana Pseudostaurosira santaremensis (Metzeltin & Lange-Bert.) E.Morales, Grana, L. & Maidana in Phytotaxa 365(1): 69. 16 Aug 2018is new combination for Fragilaria santaremensis Metzeltin & Lange-Bert. in Iconogr. Diatomol. 5: 91. 1998