PLATE LII. 



1-4. Pseudodifflugia horrida Penard. (p. 118) Side and 

 oral views of two examples from Inishboffin, Galway. 

 x 500. 



5-8. P. fascicularis Penard. (p. 119) Fig. 5. Side view. 

 Figs. 6 and 8. Side and vertical views of an active 

 individual. Fig. 7. Side view of a smooth test 

 such as sometimes occurs. All x 600. 



9-11. P. compressa F. E. Schulze. (p. 121) Broad, vertical, 

 and narrow views of an active individual, x 500. 



