Histioneis elongata from the South Pacific, Tara Oceans Expedition station 111. Lugol's-fixed specimen, z-stack of images made using a 40x objective & DIC optics.
From the original species description: Figure 4 from plate 23 of Stein, F.R. (1883) Der Organismus der Arthrodelen Flagellaten. II. Hlfte. 30 pp & plates.
Figures from the original description of Amphisolenia bidentata: Schrder, B. 1900. Das Phytoplankton des Golfes von Neapel nebst vergleichenden Ausblicken auf das des atlantischen Oceans. Mittheilungen aus der Zoologischen Station zu Neapel 14:1-38.
Ornithocercus magnificus from the Bay of Villefranche on Feb 18th 2014. The little orange balls are symbiotic cyanobacteria. Lugol's-fixed specimen, Z-stack of images made using a 40x objective and DIC optics.
Summary[edit] Description: English: Dinophysis acuminata Claparède et Lachmann, 1859 Formalin fixed sample, surface, sampling station 7 (North Sea). Species originally described in1859. The antapical portion of the cell is rounded and can bear small protruberances. The sulcal list is relatively narrow and of similar width along its entire length. Dinophysis acuminata is a producer of DSP toxins. The taxonomic position of this species is still uncertain with many, very similar species existing which could be sub species of Dinophysis acuminata. Such similar species are for instance Dinophysis sacculus, Dinophysis punctata, Dinophysis ovum. description author alexandra entered by alexandra entered date 20070802. Date: 22 December 2008. Source: http://planktonnet.awi.de/. Author: fjouenne.
Summary[edit] Description: English: Live cell of the thecate dinoflagellate Dinophysis acuta in lateral view. Live sample from net plankton haul (mesh size 20 µm), magnification x400. Date: 29 March 2011. Source: PlanktonNet. Author: Alexandra Kraberg.
Summary[edit] Description: English: Live cell of the thecate dinoflagellate Dinophysis acuta in lateral view. Live sample from net plankton haul (mesh size 20 µm), magnification x400. Date: 29 March 2011. Source: Extracted from this Commons file. Author: Alexandra Kraberg.
Summary[edit] Description: Français : Certaines espèces de Dinophysis sont responsable de nombreuses intoxication par les coquillages. Date: 14 October 2011. Source: Own work. Author: Marulio.
He thought it splendid. Figures from the original description of Ornitheroceras splendidus by Franz Schütt in 1893. The paper is available on the Classic Taxonomic Monographs page.