128 HANDBOOK OF PROTOZOOLOGY 



ganism. Encystment is followed by binary fission. Body about 

 60 microns long. Fresh water. 



Genus Thaumatomastix Lauterborn. Body colorless; pseu- 

 dopodia formed. Two fiagella; one extended anteriorly, the 

 other trailing. Holozoic. Perhaps a transitional form between 

 the Mastigophora and the Sarcodina. 



Thaumatomastix setifera Lauterborn (Fig. 43, d). Body 

 about 30 to 35 microns long. 



References 



Dangeard, p. 1901 Recherches sur les Eugleniens. Le 



Botaniste. P. 97. 

 DoBELL, C. 1908 The structure and life-history of Copro- 



monas siihtilis nov. gen. et nov. spec: A contribution to 



our knowledge of the Flagellata. Quart. Jour. Micr. Sci., 



(2) Vol. 52. 

 Lemmermann, E. 1913 Eugleninae. Siisswasserfl. Deutsch- 



lands, etc. H. 2. 

 Pascher.A. 1913 Chloromonadinae. Ibid. H. 2. 

 Wenrich, D. H. 1924 Studies on Euglenamorpha hegneri 



n.g., n.sp., a euglenoid flagellate found in tadpoles. Biol. 



Bull., Vol. 47. 

 West, G. S. and F. E. Fritsch. 1927 A treatise on the 



British freshwater algae. Cambridge. 



i 



