Ciliophora 377 



Fig. 7. 26. A-F. Formation of chains in Astomina: Haptophrya-type (A- 

 C), Radiophrya-type (D-F), schematic (after Cheissin). G, H. Biitschliella 

 nosuta RossoHnio; specimen showing nuclei and three contractile vacuoles 

 (G); anterior end showing ciliation (H); length reaches 200fi (after R.). I. 

 Anoplophrya garmnari Cheissin, x490 approx. (after C.). J, K. Haprophrya 

 wichiganensis Woodhead: ventral view showing macronucleus, contractile 

 canal and sucker (J), x265; section (K) showing sucker attached to intestinal 

 epithelium of salamander, x360 (after Bush). L. Perseia dogieli Rossolimo; 

 length, 114-205/^ (after R.). M, N. Buclineriella criodrili Heidenreich; length, 

 110-22(V; stained specimen (M); skeletal apparatus (N), schematic (after 

 H.). O, P. Metaradiophrya asymmetrica Beers: ventral view (O) showing 

 nuclei, eight contractile vacuoles, antero-ventral fibrils and hook; lateral 

 view of anterior end (P); x400 (after B.). 



