[Species characteristics connected with the distribution of reticular cells with predominant enzymatic activity of the white pulp of the spleen of various rodents].

The histo-enzymatic comparative study of the reticular cells of some rodents' spleens (Rat, Guinea-Pig, Rabbit), shows many differences between these species. Three cell types can be seen; the phosphatasic type is phagocytic and derives from the M.P.S. system, the 5'nucleotidasic is not a phagocytic cell and probably comes from the vascular perithelium, the ATPasic cell is, perhaps, an endothelial cell. These different cells are not equaly distributed in the splenic parenchyma of all animals but one type can be lacking.