PLATE VI. 
Fias. 
1-3. Mastigameba aspera F. KE. Sch. (p. 70) Fig. 1L— 
Ordinary appearance of an adult during forward 
movement Pond at Chelford, Cheshire. Fig. 2.— 
An individual which, after passing through a variety 
of mutations, ejected a quantity of effete matter at 
the point a. The flagellum is not visible, though in 
the normal state it was distinctly seen (as in fig. 1). 
Fearnhead, Lancashire. Fig. 3.—A smaller example 
showing variation from the type. All x 400. 
4. M. aspera var. cestriensis Cash. (p. 72) Northen 
Etchells, Cheshire. x 400. 
5. M. aspera. An attitude not infrequently assumed when 
the animal is resting, showing a resemblance to some 
figures of Dactylospheriwm vitreum Hertw. & Less. 
Chelford, Cheshire. x 400. ‘ 
6. M. ramulosa Kent. (p. 73) Typical form, after Saville 
Kent. x 400. 
