EUCILIATA, HOLOTRICHA 

 b 



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Fig. 264. a, Anoplophrya marylandensis, X500 (Conklin); b, A. or- 

 chestii, X500 (Summers and Kidder); c, Rhizocaryum concavum, X670 

 (C^pede); d, Metaphrya sagittae, Xl20 (Ikeda); e, Perezella pelagica, 

 X340 (C^pede); f, Dogielella sphaerii, X470 (Poljansky); g, D. minuta, 

 X670 (Poljansky); h, D. Virginia, X670 (Kepner and Carroll); i, Orchito- 

 phrya stellarum, X870 (G^pede); j, Kofoidella eleutheriae, X270 (C^pede); 

 k, Butschliella opheliae, X350 (C^pede); 1. m, Protophrya ovicola (m, a 

 young Littorina rudis with the ciliate), X80 (C^pede). 



