204 



PROTOZOOLOGY 



axopodia and a single flagellum; with a contractile stalk; a single 

 chromatophore ; a contractile vacuole; fresh water. 



C. pedicellata P. (Fig. 89, j). Body 18-22^ long; axopodia 40-60m 

 long ; stalk 50-80^ long. 



Genus Palatinella Lauterborn. Lorica tubular; body heartshaped; 



Fig. 90. a, flagellate and b, amoeboid phase of Chrysamoeba radians, 

 X670 (Klebs); c, surface view and d, optical section of Porochrysis asper- 

 gillus, X400 (Pascher); e-j, Myxochrysis paradoxa (Pascher). e, a medium 

 large Plasmodium with characteristic envelop; the large food vacuole 

 contains protophytan, Scenedesmus, X830; f, diagrammatic side view of a 

 Plasmodium, engulfing a diatom; moniliform bodies are yellowish 

 chromatophores, XlOOO; g-i, development of swarmer into Plasmodium 

 (stippled bodies are chromatophores), X1200. 



anterior border with 16-20 axopodia; a single flagellum; a chromato- 

 phore; several contractile vacuoles'; fresh water. 



P. cyrtophora L. (Fig. 89, k). Lorica 80-1 50/i long; body 20-25^ by 

 18-25/i; axopodia 50)u long. 



Genus Chrysosphaerella Lauterborn. In spherical colony, indivi- 

 dual cell, oval or pyriform, with 2 chromatophores; imbedded in 

 gelatinous mass ; fresh water. 



C. longispina L. (Fig. 89, I). Individuals up to 15/i by 9//; colony 

 up to 250m in diameter; in standing water rich in vegetation. 



Genus Porochrysis Pascher. Shell with several pores through 

 which rhizopodia are extended; a flagellum passes through an apical 



