TESTACEA 



233 



LieberkUhnia wagneri Claparede and Lachmann (Fig. 93, c). 

 Test ovoid or subspherical, usually devoid of adherent particles. 

 Aperture subterminal, oblique, flexible. Slightly yellowish 

 protoplasm fills the test. Nucleus vesicular and numerous (80 

 to 150 in number) ; numerous contractile vacuoles. Pseudopodia 

 long and anastomosing. Length 60 to 160 microns. On fresh- 

 water or marine algae. 









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Fig. 93 a. Allogromia ovoidea. Xabout 50 (After Schultze). 



b. Microgromia socialis. X165 (After Cash). 



c. LieberkUhnia wagneri. X 140 (After Verworn). 



d. Rhynchogromia nigricans. X200 (After Cash and Wailes) 



e. Diplophrys archeri. X700 (After Hertwig and Lesser). 



f. Amphitrema flavum. X355 (After Cash and Wailes). 



