Auliscus fenestratus from Forester’s Hill, Oamaru, New Zealand. Fossil material. Single example on the slide, mounted with the underside facing the coverslip (rim upwards). Mounted in Hyrax and dated October 1962. 100µm over line of processes. Prepared by ECP Bone. Olympus BHB microscope using 450nm LED light. 63x Leitz Pl Apo NA 1.4 objective, oil immersion. Olympus Aplanat Achromat condenser, oblique lighting, oil immersion. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. 33 images stacked in Zerene (Pmax).
Auliscus fenestratus Grove & Sturt 1887. Published in: Grove, E. & Sturt, G. (1887). On a fossil marine diatomaceous deposit from Oamaru, Otago, New Zealand. Part II. Journal of the Quekett Microscopical Club, Series 2, 3 (17). Journal of the Quekett Microscopical Club, Series 2 3(17): 7-12, 2 pls. Page 10, Plate 3, Figure 12.