H. W. KING ON AMOEBJE. 419 



Fig. 5. Amceha radiosa. Letters as above with g.g., adhesive 

 expansions of pseudopodia. 



„ 6. Another form of above. 



„ 7. Amceha princeps from Colon, a. Endosarc quiescent. 

 b. Nucleus, c. Vacuoles, d. Granules, e. Ectosarc 

 extending without endosarc. f.f. Diatoms, etc., 

 absorbed as food. 



„ 8. Amoeba princeps showing endosarc in motion with the 

 ectosarc letters as above. 



„ 9. Amoeba princeps, another form assumed by same. 



„ 10. Amceha princeps, encysted form with un absorbed pro- 

 cess of ectosarc. 



„ 11. Two Amoeba p)rinceps conjugating. 



„ 12. Amoeba princeps discharging granules and sarcode. 

 In Figs. 5, 7, and 10 the nucleus is naturally contracted and 

 shows a hyaline space around it. 



Plate XX. 



Figs. 1, 2, 3, 4, and 5. Uncertified forms of Amoeba express- 

 ing different protoplasmic action, from St. Lucia, W.L 

 a. Endosarc. b. Ectosarc. c. Contractile vesicle. 

 d. Diatoms taken into endosarc as food. e. Largely 

 developed contractile vesicle with very thin film of 

 sarcode over it. 



Figs. 3, 4, and 5 are probably modified forms of Amouba princeps, 

 though remarkable for a rounded development of one 

 extremity. Colour similar to ground glass. 



