[taxonomy:genus=Gymnodinium]
Date:
23 Aug 2011
Location:
Small lake in Kent Ridge Park. Water margin with vegetation, brown sediment with organic detritus. Tadpoles resting nearby.
Microscope:
Bright-field with closed condenser aperture.
Camera:
Nikon D7000
Collector:
Brandon Seah
Scale:
20830 pixels/mm = 20.8 pixels/µm
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.
Scanning electron micrographs surronding a transmitted light micrograph of living cells. For details see the article by Pizay et al. in the Journal" Protist" in 2009.