The Mastigophora 153 



Fig. 4. 27. A. B. Collodictyon triciliatiim Carter, basal portions of flagella, 

 longitudinal groove, development of pseiidopodia; x500 (after Rhodes). C. 

 Raciborskiella uroglenoides Swirenko, cluster of four flagellates; xlOOO ap- 

 prox. (after S.). D. Mesostigma viride Lauterhorn: x2100 approx. (after 

 Pascher). E. Ped'niomonas minor Korshikoff, x3100 approx. (after K.). F-I. 

 Polytomella citri Kater; living specimen showing stored food and contractile 

 vacuoles (F): a variation in form, nucleus stained (G); young (H) and older 

 (I) cysts; x2250 (after K.). J. Pyramijnojias tetrarhynchus Schmarda; large 

 chromatophore indicated as transparent to show positions of pyrenoid, an- 

 terior nucleus and contractile ^acuoles; xl425 (after Geitler). K. Trichloris 

 paradoxa ScherfEel; xllOO approx. (after S.). 



Korshikov (217), Fortiella Pascher (206). Gigautochloris Pascher (206; Fig. 4. 26, J), 

 Gleomonas Rlebs (206), Hypnomonas Korshikov (206). Lobomonas Dangeard (206; Fig. 

 4. 28, E), Malleochloris Pascher (206), Nautococcus Korshikov (161; Fig. 4. 28, I, J), 

 Phyllomonas Korshikov (206), Platychloris Pascher (206), Platymonas West (31; Fig. 4. 

 28, N), Scourfieldia West (206; Fig. 4. 28. K, L), Selenochloris Pascher (207, 217), 

 Sphaerellopsis Korshikov (206), Sphenochloris Pascher (206), Spirogonium Pascher (206), 

 and Stylosphaeridium Geitler (206). 



Colorless types are included in the following genera: Chlamydoblepharis France 

 (206), Hyalogonium Pascher (206; Fig. 4. 28, M), Parapolytoma Jameson (121), Poly- 

 tnma Ehrenberg (206), Tetrablepharis Senn (206), and Tussetia Pascher (206). 



