PLATE XI. 



FIGS. 



1-3. Vampyrella lateritia (Fresen.) Leidy. (p. 96) Fig. 1. 

 An individual with pseudopodia fully extended. 

 After West, x 520. Fig. 2. The same, after 

 attacking a filament of Mougeotia. After West, 

 x 520. Fig. 3. Slug-like form. After Biitschli. 

 x about 800. 



4-6. V. vorax Cieiik. (p. 102) Fig. 4. A plasmodiuiu 

 formed by the union of two separate individuals, of 

 which fig. 5 was one. Pond at Northen Etchells, 

 Cheshii'e. x 500. Fig. 6. An individual of un- 

 usual form. After Penard. 



7-12. V.flabellata Cash. (p. 103) An individual as seen 

 in various attitudes, during extended observation. 

 Barking, Essex. x 500. 



13-15. V. goinphonematis Hgeck. (p. 105) Fig. 13. An 

 individual as ordinarily met with amongst floating 

 vegetation. Pond, Cheshire, x 500. Fig. 14. 

 Another, enclosing a diatom from which it had ex- 

 tracted the chlorophyl. Pond, Cheshire, x 500. 

 Fig. 15. An example as seen enveloping frustrules 

 of a Gomphonema. From Biitschli, after Haeckel. 

 x about 350. 



