Description of Sphenoderia lenta
provided by BioPedia
Testate amoeba, the lorica is colourless, circular or ovoid and composed of approximately sixty circular shell plates. The body plates appear to be arranged in a regular manner. The aperture is assumed to be a terminal elongate opening which collapses in preparation, and is surrounded by a broad based organic collar. The collar is covered with numerous small, oval siliceous plates. Body length 35-55 microns, breadth 24-40 microns, diameter of aperture 12-19 microns, diameter of body plates 10-12 microns, diameter of small apertural collar plates 1-2 microns. This is the type species of the genus.
