Actinocyclus barkleyi from Mobile, California. 2 examples on the slide. Bubbles present in the mountant. Prepared by Herbert William Hutton Darlaston. Olympus BHB microscope using 450nm LED light. 40x Leitz Pl Apo NA 1.00 objective, oil immersion. Olympus Aplanat Achromat condenser, oil immersion, brightfield lighting. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. 34 images stacked in Zerene (Pmax).