EUCILIATA, HOLOTRICHA 



489 



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Fig. 226. a, Atioplophrya marylandensis, X500 (Conklin); b, A. 

 orchestii, X500 (Summers and Kidder); c, Rhizocaryum concavum, 

 X670 (Cepede); d, Metaphrya sagittae, Xl20 (Ikeda); e, Perezella 

 pelngica, X340 (Cepede); f, Dogielella sphaeni, X470 (Poljansky); 

 g, D. minuta, X670 (Poljansk}'^) ; h, D. Virginia, X670 (Kepner and 

 Carroll); i, Orchitophryn stellarum, X870 (Cepede); j, Kofoidella elu- 

 theriae, X270 (Cepede); k, Butschliella opheliae, X350 (Cepede); 

 1, m, Protophrya ovicola (m, a young Littorina rudis with the ciliate), 

 X80 (Cepede). 



