Ciliophora 369 



Fig. 7. 22. A. Pleuronema setigerum Calkins; large paroral membrane 

 extends around posterior end of peristome; cilia shown at margin of body; 

 x450 (after Noland). B. Cristigera setosa Kahl, specimen iOfi long (after K.). 

 C. Cross-section of Pleuronema chrysalis through posterior end of peri- 

 stomial gioove; x510 (after Wetzel). D. Histiobalantium semisetatuin Noland, 

 inclusions omitted; x200 (after N.). E. Cledoctema acanthocrypta Stokes, 

 specimen 35yu, long (after Kahl). F. Cyclidium glaucoma O. F. M., cilia 

 shown only at margin; xl200 (after Parducz). G, H. Porpostoina notatum 

 Mobius: nuclear apparatus (G), xlUO; pcristomial area (H), anterior ciliary 

 field broken up into a linear series of pseudomembranelles, schematic, x500 

 (after Mugard). I. Peristomial area of Philasterides armata Kahl, showing 

 deltoid, trapezoid, and falciform ciliary fields; x500 (after Mugard). J. 

 Philaster digitiformis Fabre-Domergue, somatic and adoral ciliary patterns; 

 x500 (after Mugard). 



