132 The Mastigophora 



(221). In Diporidion Pascher and Porostylon Pascher, there are two pores in the lorica, 

 which bears a stalk in the latter genus (220). In Heliochrysis Pascher (Fig. 4. II, C, 

 D), intracellular parasites of Sphagnum, as well as in the similar Heliaktis Pascher, 

 Chrysocriniis Pascher, and Stephanoporos Pascher. the spheroid to ovoid theca contains 

 a number of pores through which slender pseudopodia extend (220). 



Family 2. Myxochrysidae. In the life-cycle of Myxochrysis Pascher 

 (203), a Chromuli)ia-\ike flagellate becomes an amoeboid stage which 



Fig. 4. 12. Chrysocapsina. A-E. Celloniella pale?isis (after Pascher). A. 

 Branching palmella in flowing water, xlO. B. Bladder-like stage attached to 

 stones in dripping water. C. Tip of branch of palmella, highly magnified. D. 

 Amoeboid stage. E. Flagellate stage (C-E, diagrammatic). F. NagelieUa natam 

 Scherffel, x4o6 approx. (after S.). 



develops into a plasmodium (Fig. 4. 6, A-C). The mature plasmodium 

 secretes a thick brownish membrane, within which many uninucleate 

 naked stages or cysts are produced. Cysts hatch into the flagellate or 

 amoeboid forms. 



Suborder 5. Chrysocapsina. The dominant stage is a palmella which 

 may grow to a fairly large size in some genera. 



Family 1. Chrysocapsidae. The organisms are distributed throughout 

 the matrix which is not highly differentiated, and fission may occur in 

 any region of the palmella. The matrix of Chrysocapsa Pascher (202) is 



