Surirella is a benthic genus, found particularly on mud surfaces at the bottom of the water column. The genus is largely tolerant of different water types and chemical makeup. The raphe is raised and runs all around the perimeter of the frustules making Surirella species very mobile. Some specimens can be quite large. Surirella linearis is a freshwater species. Surirella is generally relatively recogniseable by it's shape and character.
Surirella, species undetermined found in diatomite deposit at Three Lakes, core TL5, at 3.6 to 3.7 m depth; also in core TL1 at 5.77 and 5.99 m depth.
Surirella linearis found found in TL5 in the diatomite.
See Surirella on Algaebase or
Diatoms.org or on the
Natural History Museum of Wales website.