210 The Sarcodina 



Pinaciocystis Roskin (128); Pinaciophora Greef (108; Fig. 5. 5, B); Pompholyxophrys 

 Archer (108; Fig. 5. 6, K); Raphidiophrys Archer (108, 158; Fig. 5. 5, H); Raphidocystis 

 Penard (108, 158; Figs. 5. 3, F, H, I, 5. 5, E-G); and Wagnerella Mereschkowski (163). 

 The status of Myriophrys Penard (108) is uncertain. The secreted envelope with 

 adherent scales, the slender granular pseudopodia, and the large eccentric nucleus 

 would seem to qualify the genus for the Acanthocystidina. A coat of undulating "cilia 

 or flagella" complicates matters. Perhaps these "flagella" should be investigated as 

 possible bacteria adherent to the body. The genus Chondropus Greef (108) must re- 

 main unassigned until more is known about the organisms. 



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Fig. 5. 7. Desmothoracina: A-F. Monomastigocystis brachypoiis De Saede- 

 leer (width, 9-15//): specimen with short stalk (A); optical cross-section (B); 

 in fission (C, D) one daughter organism develops into a flagellate (E); cyst 

 (F) with double membrane (after De S.). G-L. Hedriocystis pellucida: 

 young specimen without test (G), schematic (after Valkanov); mature form 

 (H), x700; fission (I, J), x315; one daughter organism becomes a biflagellate 

 stage which leaves the test (K, L), x525 (after Hoogenraad). M. Clathrulina 

 ehgans Cienkowski; diameter of test, 60-90;i (after Penard). 



