second support iii<^' filamoiil in ilu' moinhrancs of types A 

 and B. \\'illi one end the mcniln-ano adjoins Iho nuclens-niem- 

 branc very closely, whilst the other end of the membrane 

 may he widely detached from the nncleus. The nmlnlatinfj- 

 memliranr of type C in most cases lies to^-ether with the 

 luiclens inside the endoplasm not proj<'ctino- above the body- 

 surJace. This circnmstance is especially noteworthy as it pos- 

 sildy points at the rndimentary chara('t(M' of the membrane 

 in individnals of type C. Indeed, takiiii^- into acconnt the 

 insignificant size of tii(> membrane and the comparatively 

 enormons size of the amoeba itself, the membrane may hardly 

 be snpposed lo play any important role as a locomotory appa- 

 ratns here, or as an adaptation for grasping food. 



Amongst the individuals of type C there are often found 

 specimens preparing for encystment (tab. J\'. t'ig. 40). Such 

 iiulividuals begin to round themselves off and assume a re- 

 gular oval shape, the ectoplasm layer becomes uniformly thick 

 on all the periphery of the body, and the endoplasm fills up 

 Avith numerous chomidia. 



Besides the uninuclear iudividuals of the named three 

 types, there are to be found in the intestine of Hodotermes 

 just as often binucleate stages in the asexual reproduction of 

 Mijxomonas. Amongst such binucleate individuals some give 

 origin to types A and B, and others must be connected with 

 type C, on account of the structure of their nucleus and 

 uiululating membrane. 



Type D. Let us first examine the former. Individuals under- 

 going division (tab. Ill, fig. 27 — 29) which give the origin to 

 types A and B are of amoeboid character, and are easily distin- 

 guishable by the presence of great quantities of food in the 

 endoplasm. This character is remarkable for the dividing 

 Myxovionas. The food of Mijxomonas is rather varied. It feeds 

 chiefly on pieces of wood and parts of vegetative cells swal- 

 lowed by the termite-host. Besides wood, in the endoplasm 

 of Mijxomonas may often be found numerous spores probably 

 belonging to fungi. The food lies right in the endoplasm not 

 being surrounded by food-vacuoles. The endojilasm has a fi- 

 nely granular structure and is poor in vacuoles. As concerns 

 the structure of the ectoplasm, dividing individuals present 

 a great variety, there being a whole series of transitory forms 

 from types A and B to type C. 



