PLATE XLIII. 



Figures magnified 485 diameters. 



page 



Fig. 42. Stylonychia pustulata Ehr 166 



Fig. 43. Stylonychia mytilus Ehr 166 



Fig. 44. Stylonychia notophora Stokes 166 



Fig. 45. Oxytricha bifaria Stokes 165 



Fig. 46. Oxytricha pellionella Mull 166 



