PLATE XXIX. 



FIGS. 



13. Quadrula symmetrica (Wallicli) F. E. Sch. (p. 129) 

 Fig. 1. A living individual. Figs. 2, 3. Broad 

 and narrow views of an empty test. Dunham, 

 Cheshire, x 280. * 



4-9. Q. irregularis Archer, (p. 132) Figs. 4, 5. Broad 

 and narrow views of an active individual. Fig. 6. 

 An encysted example. Figs. 7-9. Broad, narrow, 

 and oral views of an empty test. Heatley, Cheshire, 

 x 400. 



10-12. Heleopera sylvatica Penard. (p. 136) Broad and 

 narrow views of a living example. Fig. 12. An 

 encysted example. In Sphagnum, from Dunham, 

 x 380. 



13-19. R. petricola Leidy. (p. 137) Figs. 13, 14. Broad 

 and narrow views of an encysted individual in 

 Sphagnum from the Pentland Hills. Fig. 15. 

 Broad view of a living example from Dunham. 

 Figs. 1 6, 17. Broad and narrow views of an encysted 

 example in Sphagnum from Dunham. Figs. 18, 19. 

 Broad and narrow views of an encysted example 

 in Sphagnum from Cader Idris, N. Wales, x 280. 



20, 21. H. petricola var. major Cash. (p. 139) Broad and 

 narrow views of an active individual. Pond-side at 

 Padgate near Warrington. x 220. 



22. H. petricola var. amethystea Penard. (p. 139) Broad 

 view of test. Dolgoch, near Towyn, N. Wales, x 

 240. 



