Phylum: Bacillariophyta  Family: Naviculales Incertae Sedis

Kobayasiella parasubtilissima (H. Kobayasi & T. Nagumo) Lange-Bertalot 1999

An apparently rare diatom found trapped in Batrachospermum mucilage, from an algae squeeze.

References: 
Lange-Bertalot, H. (1999) Kobayasiella nom. nov. ein neuer Gattungsname für Kobayasia Lange-Bertalot 1996. Iconographia Diatomologica 6: 272-275.