The Golgi Bodies of a Coccidian. 



By 

 Shaiia D. King and J. Bronte Gatenby, 



School of Zoology, Dublin University. 



With Plate 21. 



For many months we have been collecting material of the 

 protozoan fauna of the gut of Lit ho bins for fie at us. 

 Our object was to study the Golgi apparatus, if such were 

 present, and to examine also the behaviour of the mitochondria. 

 We chose the form Adelea because we believed that its life- 

 history was well known, and that there would be no special 

 difficulty in identifying the stages. In this we have been 

 disappointed — we found that Siedlecki and other workers 

 have left the matter in a confused state : we have been obliged 

 to spend many months trying to piece together the various 

 parts of the life-history : at present we are not sure of any of 

 the stages except those described in this paper. 



Mr. Dobell (in Uteris) has answered some of our questions 

 as well as he was able considering that his own paper on the 

 subject of Adelea was written many years ago at the beginning 

 of his investigations on the Protozoa. In our first material 

 nothing except Adelea seemed to be present ; but subsequently 

 we found to our regret that the Coccidian (Eimeria schu- 

 bergi?) stages were present side by side with those of Adelea. 

 Minchin, in his ' Introduction to the Study of the Protozoa ', 

 has brought out the fact that not only has there been a con- 

 fusion as to the stages in the life-history of many Coccidia, but 

 that in the case of Adelea, Eimeria, and Barroussia, there has 

 been even a confusion of species described under the one name. 

 That this confusion is not difficult to bring about can best 

 be understood by trying to identify the various species and 

 stages ; we ourselves have been much puzzled in the endeavour 



