Auliscus sp. from Palos Verdes. Could be A. confluens, but this needs to be verified further. 3 examples on the slide, right hand one in the main image. Prepared by Wallace Frederick Reeve (no name on slide). Likely mounted in Sirax and dated 7/48. Olympus BHB microscope using 450nm LED light. 63x Leitz Pl Apo NA 1.40 objective, oil immersion. Leitz Heine condenser set to dark ground but giving circular oblique illumination as the objective is high NA, oil immersion. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. 11 images stacked in Zerene (Dmap).