Drawing

Description :

Thaumatomastix setifera Lauterborn, 1899. Gliding heterotrophic flagellate. Cells are oval, about 14 - 17 microns long and slightly dorso-ventrally flattened. The cells have a layer of visible scales and delicate spines. A ventral groove extends from the anterior depression to the posterior end of the cell. Two flagella insert to the widely opened anterior depression on the ventral face of the cell. The anterior flagellum is about 0.6 - 1 times the cell length and beats from side to side. The posterior flagellum is about 1.2 - 1.6 times the cell length and trails. The nucleus is anteriorly located. The cells move slowly by gliding.