352 Janet W. Raff: Protozoa, Fart 11. 



EXPLANATION OF PLATES. 



Plate LXX. 

 All figures drawn with camera lucida. 



Fig. 1. Three specimens of Opalina tenuis, n.sp., showing 

 general outline and position of nuclei. 



Fig. 2. Young individual of same, showing cilia. (High 

 power.) 



Fig. 3. Drawing of Opalina dorsalis, n.sp., showing ciliation, 

 outline and position of nuclei. 



Fig. 4. Same of Opalina acuta, n.sp. 



Fig. 5. Abnormal forms of Opalina from Limnodynastes 

 dorsalis. 



Plate LXXI. 



A. P. Anterior portion. 



C.V. Contractile vacuole. 



N. Nucleus. 



P.P. Posterior portion. 



V.I. Various inclusions. 



Fig. 1. Diagram of Entamoeha morula, n.sp., drawn from the 

 living animal, showing the characteristic posterior pseudopodia. 

 The nucleus is only faintly visible. 



Figs. 2, 3 and 4. Diagrams of same killed in osmic vapour 

 and stained in picro-carmine. 



Fig. 5. E. morula, after having been left in saline solution for 

 some time, then killed and stained. Posterior pseudopodia dis- 

 appearing. 



Fig. 6. Same, having assumed a spherical shape. 



Fig. 7. Individual with two nuclei. 



Figs. 8 and 9. E. morula showing peculiar anterior flagellum- 

 like organ. 



