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HANDBOOK OP PROTOZOOLOGY 



Boveria teredinidi Pickard (Fig. 162, c). Body about 27 to 

 173 microns long. On gills of Teredo navalis. 



Family 5 Caenomorphidae Poche 



Genus Caenomorpha Perty ( = Gyrocoris Stein). Body con- 

 stant and colorless. Free-swimming. The anterior portion bell- 

 shaped, posterior half drawn out. Peristome long, oblique with 

 strong cilia. Elongated macronucleus with a constriction. A 

 single contractile vacuole. Fresh or salt water. Several species. 



Caenomorphn medusula Perty (Fig. 162, d). Fresh water. 

 Body about 100 to 130 microns long. 





Fig. 163 a. Epalxis mirabilis. X900 (After Roux). 



b. Pelodinium reniforme. X450 (After Lauterborn). 



c. Discomorpha pectitiata. X165 (After Kahl). 



d. Saprodinium dentatum. X320 (After Kahl). 



e. Tintinnidium fluviatile. X 100 (After Kent). 

 f, g. T. semiciliatum. XlOO (After Sterki). 



Family 6 Epalcidae Wetzel 



Asymmetrical body discoid, compressed laterally; cilia re- 

 duced. Spines and comb-like structures about the cytostome. 

 Sapropelic. 



Genus Epalxis Roux. Body rounded triangular; anterior end 

 bluntly pointed, posterior end drawn out into 7 or 8 blunt 

 processes. Dorsal surface convex. Cytostome at the anterior 



