The object of this communication is to bring together descriptions and illustrations of the freshwater Rhizopoda which I have found in England since my return from India in 1862, and also to add some of those which from time to time came under my notice in the island of Bombay, in order that I may, to a certain extent, show what species are common to both localities, and also some of those which may be peculiar to Bombay, or at least may not yet have been described. Further, I have drawn most of these on the same scale, and have added some of their varieties respectively, so that an idea may be thus gained of their sizes generally, as well as of some of their differences in point of shape; for, unless they are treated...