PLATE XXXIV. 



page 



Arcella vulgaris, oral view 204 



Arcella vulgaris, top view 204 



Arcella vulgaris, side view 204 



Trinema euchelys 205 



Trinema euchelys 205 



Trinema acinus 205 



Trinema euchelys, encysted 205 



Trinema euchelys 205 



Euglypha alveolata 204 



Euglypha ciliata 204 



Euglypha alveolata 204 



Assulina seminulum 204 



