Actinocyclus barklyi (spelt barkileyi on the slide) from Australia. The name is currently regarded as a synonym of Actinoptychus barklyi (Kitton) Habirshaw. Single example on the slide. Prepared by Samuel Henry Meakin. Mounted in Styrax and dated October 1943. 63x Leitz Pl Apo NA 1.40 objective, oil immersion. Olympus Aplanat Achromat condenser, oil immersion, brightfield lighting. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. 45 images stacked in Zerene (Pmax).