PLATE X. 



Vampyrella lateritia (Fresen.) Leidy. (p. 96) 



FIGS. 



1-4. Ordinary form. Marshy pools, Cheshire, x 300. Fig. 1. 

 Showing capitate and pseudopodal rays. Fig. 2. 

 The same individual attached to a Conferva filament. 

 Fig. 3. The filament broken at a joint, one cell 

 being emptied of its chlorophyl. Fig. 4. After two 

 cells have been cleared, showing the position in 

 which the cells were left. 



5. Liberation of a sporozoon, the pseudopodia of which are 

 sharply pointed, x 300. 



6, 7. Two views of the same sporozoon after complete separa- 

 tion, exhibiting amosboid movements and containing 

 a vacuole and an apparent nucleus. (The further 

 development could not be traced.) x 300. 



8. A peculiar condition, the body covered with a mass of 



external vesicles (some pedunculated). Dunham 

 Marsh, Cheshire. x 450. 



9. An individual with two pulsating vesicles, fine radial 



filaments, and numerous short irregularly-crowded 

 pseudopodia in place of capitate rays. Barking, 

 Essex, x 450. 



10. An individual at rest, after attacking a Conferva fila- 

 ment and absorbing the chlorophyl of one segment. 

 Epping Forest, x 300. 



