SUCTORIA 



405 



Fig. 173 a. Metacineta mystacina, capturing Halteria grandinella. 

 X400 (After Collin), 

 b-d. Tokophrya infusionum. b, an adult organism (X400); 

 c, free-swimming bud ( X800) ; d, a young attached 

 form(X800). (After Collin). 



e. A young T. cyclopum. X500 (After Collin). 



f. Acineta divisa. X465 (After Calkins). 



g. A. tuberosa. X665 (After Calkins). 



h. Thecacineta cothurnioides. X400 (After Collin). 



