Drawing

Description:

Thaumatomastix thomseni Tong, 1997. Oval cell, measuring 10-12.5 x 7-10microns, with one flagellum visible by light microscopy (about 1.5 times cell length) inserting into a pocket at the apex of the cell. A thin furrow arises from the flagellar pocket and runs about half way down the cell. Flagellar scales are oval, 250-310 x 165-195nm, with a ring of perforations just inside the rim. Body scales are oval (800-900 x 500-600nm) and formed from two partially fused plates with a slightly thickened central longitudinal stripe, and a oval thickening where the two plates join.