A slide with four examples of Cocconeis punctatissima from Santa Monica. No makers name, but the style indicates it was prepared by Frederick Marshall. Olympus BHB microscope using 450nm LED light. 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. 26 images stacked in Zerene (Pmax).
Described in Greville, R.K. (1857). Description of some new Diatomaceous forms from the West Indies. Quarterly Journal of Microscopical Science, London, 5: 7-12, pl. III page(s): p. 8; pl. 3, fig. 1. Synonimized names: Mastogloia punctatissima (Greville) Ricard, 1975, Orthoneis punctatissima f. punctatissima (Greville) Lagerstedt, 1876.