TESTA CEA 



231 



yellowish brown granules. Two nuclei close together; contrac- 

 tile vacuoles. Diameter 80 to 100 microns. In mosses. 



Genus Parmulina Penard. Test ovoid, chitinoid with foreign 

 bodies. Aperture capable of being closed, a single nucleus, one 

 or more contractile vacuoles. A few species. 



Parmulina cyathus Penard (Fig. 92, c). Small test flexible; 

 ovoid in aperture view; hemi-circular in profile. Aperture a 

 long narrow slit when the test is closed; circular or^elliptical 

 when opened. Length 40 to 55 microns. In mosses. 



Fig. 92 a. Zonomyxa violacea. XI 50 (After Penard). 



b. Microcorycia flava. X 180 (After Wailes). 



c. Parmulina cyathus. X375 (After Penard). 



d. Capsellina timida. X200 (After Brown). 



e. Diplochlamys leidyi. X200 (After Wailes). 



Genus Capsellina Penard. Test hyaline, ovoid, mem- 

 branous; with or without a second outer covering. Aperture 

 linear. A single nucleus; one or more contractile vacuoles; 

 pseudopodia filose. Two species. 



Capsellina timida Brown (Fig. 92, d). Small, oval; elliptical 

 in cross-section. Endoplasm with numerous oil-like globules. 

 A single filopodium. 35 microns long by 25 microns broad. 

 In mosses. 



Genus Diplochlamys Greeff. Test hemispherical or cup- 

 shaped, flexible with a double envelope. Inner envelope a 

 membranous sac with an elastic aperture, the outer envelope 

 with loosely attached foreign bodies. Aperture large. Nuclei 

 one to over one hundred in number. Pseudopodia few, short; 

 digitate or pointed. Several species. 



