Aulacodiscus aucklandicus Grunow, unknown mounter

Aulacodiscus aucklandicus Grunow

An arrangement labelled as Aulacodiscus aucklandicus Grunow. I’m struggling with the rest of the slide label, but I think it says New Zealand at the bottom. No makers name. Strange blue tint to the sample area – is this the coverslip or the mountant causing that? Remains to be seen. I’ve not been able to find any comparison images for A. aucklandicus to check these against. Olympus BHB microscope using 390nm LED light. 20x Nikon Plan Apo NA 0.65 objective. Olympus Aplanat Achromat condenser, oil immersion, slightly oblique lighting. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. 13 images stacked in Zerene (Pmax).