The Sarcodina 209 



The differentiation of genera is based to an important extent upon 

 thickness of the capsule and the form and arrangement of the skeletal 

 elements (Fig. 5. 6, A-H). 



The following genera arc included in the suborder: Acarithoryslis Carter (83, 108 

 154; Fig. 5. 5, C); Actinolophus Schulze (149; Fig. 5. 6, I); AstrocUsculus Greef (108 

 Fig. 5. 5, A); Cienkowskya Schaudinn (149; Fig. 5. 5, D); Elaeorhanis Greef (108) 

 Heterophrys Archer (108; Fig. 5. 6, J); Lithocolla Schulze (108); Oxnerella Dobell (34) 



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Fig. 5. 6. Acanthocystidina: A-H. Skeletal elements: A. Raphidocystis 

 ambigua; B. Acanthocystis mimetica, spine and scales; C. A. aculeata, spine 

 and scales; D. Raphidiophrys elegans, surface and edge views of scales; E. 

 Raphidocystis glutinosa; F. Raphidiophrys intermedia, surface and edge 

 views of scales; G. Spine of Heterophrys myriopoda; H. Raphidocystis 

 leniani; schematic (after Penard). I. Actinolophus pedunculatus Schulze 

 (body, 35 x 30;n), sessile on Bryozoa; radially arranged bodies within test 

 believed to be ingested food (after Villeneuve). J. Heterophrys myriopoda 

 Archer, x330 (after Penard). K. Pompholyxophrys punicea Archer, x400 

 approx. (after Penard). 



