A strew slide from Port Townsend, Washington, USA. Prepared by Samuel Henry Meakin. Mounted in Hyrax. Nice range of species present. Olympus BHB microscope using 450nm LED light. 63x Leitz Pl Apo 1.4 objective, oil immersion. Olympus Aplanat Achromat condenser, oil immersion, oblique lighting. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. Image stacks prepared in Zerene (Pmax). ID’s are tentative.
Lyrella sp. This looks a bit like L. lyra, but the dot pattern is very unusual. It could be an aberrant example. 28 images in Pmax.
Auliscus sculptus ? I’ve put a question mark against this one. I’m fairly sure it is an A. sculptus, but I’m not sure as to the variant. Underside view. Some artefacts at the edge due to the oblique lighting. 28 images in Pmax.
Neobrightwellia alternans. Fairly sure on this one. Also called Triceratium alternans, and Trigonium alternans. Underside view. 25 images in Pmax.