GOLGI BODIES OF A COCCIDIAN 385 



the Golgi bodies, are much fewer and smaller than those found 

 in the ? gametocyte. 



Examination of a large number of cells which we believe to 

 be o^ gametocytes before association has enabled us, we think, 

 to throw some light on this matter : in PL 21, figs. 1, 3, 4, 6, 

 and 9, are what we believe to be o^ gametocytes. In them the 

 apparatus is rarely juxta-nuclear, but has fragmented, and its 

 elements seem to have passed to the periphery and are struck 

 beneath, or on, the cell-wall. We have found many o^ gameto- 

 cytes in association, with no signs of any Golgi bodies, except 

 a number of these peripheral black granules. We believe 

 that in the o^ gametocyte the Golgi apparatus is mainly extruded 

 or absorbed. We doubt very much if it takes any part in 

 fertilization. In PI. '21, fig. 9, is a o^ gametocyte prepared in the 

 same manner as the cell in PI. 21, fig. 20. In PI. 21, figs. 7 and 8, 

 are two cells, which may be intermediates between o^ and § 

 gametocytes — such intermediates often occur in the metazoa : 

 in PI. 21, fig. 7, there is certainly an apparatus at g, the nature 

 of the granules at gx is more doubtful, but in both figures there 

 are elements which seem to be passing to the periphery. 



The 0^ gametocyte often stains so darkly that it is difificult 

 to make out much of its structure. In PI. 21, fig, 10, is an 

 example of a c/' gametocyte containing a large granule which 

 did not appear to be taking any part in the activity of the cell 

 in which it lay : there were no clear dictyosomes. 



Discussion. 



In this paper we have described what we consider to be the 

 Golgi apparatus of the protozoan Adelea. This Golgi apparatus 

 is dissolved away by the same fluids, preserved by the same 

 reagents, and stained hj the same methods as the Golgi 

 apparatus of the metazoan cell. 



During growth, the coccidian Golgi apparatus, like that of the 

 metazoan egg, spreads out through the ground cytoplasm in 

 the form of curved banana-shaped rods or dictyosomes. 

 So far as we could observe, the Golgi apparatus of Adelea 



