Fig. 39. Cryptomonadina and Euglenoidina. A, Cryptomonas ovata, x 900. 

 B, Chrysidella schaudinni, in the resting stage. C, Cyathomonas truncata, 

 X 1000. U, Euglena viridis, x 400. D', A longitudinal section of the anterior 

 end of the same, more highly magnified. E, Pera?tema trichophorum, x 850. 

 F, Copromonas siibtilis, x about 1700. F', A pair of the same, beginning to 

 conjugate, less highly magnified. After various authors, with modifications. 

 c.vac. contractile vacuole ; c.vac' accessory contractile vacuole ; cph. chromato- 

 phore; e. eye-spot ; /.z^«c. food vacuole;^, flagellum; ^j/. gullet; nn. nucleus; 

 pmy. paramylum grains; res. reservoir; rod. stiflfening rods of gullet; stch. 

 starch grains; tri. trichocysts. 



