128 Wisconsin Academy of Sciences, Arts, and Letters. 
very irregular. This irregularity is due to the free ends being 
out off by a process of strangulation already described for the 
Ostracods by Claus (3). In Eniocythere nearly every section 
of the stomach shows this process of strangulation, PL XII, fig. 
15, the parts already cut off being easily seen. In many sections 
the cells here and there were very much flattened as if they had 
already thrown off a large part, of themselves, and near them 
the lumen of the stomach contained a number 1 of balls; some of 
which showed a, distinct outline while others had begun to dis¬ 
integrate. 
Posteriorly the stomach passes abruptly into the intestine, 
the decrease in size being very noticeable 1 as. is- also a change in 
the structure of the wall. In the intestine the cell boundaries 
were not discernible, the cells being grouped together into villi¬ 
like clusters. The nuclei are grouped together, PL XII, fig. 
14, being proportionately very much smaller than those in the 
cells of the stomach. I was unable to distinguish any cell boun¬ 
daries. At its posterior end the walls of the intestine becomes 
thin and the lumen decreasing very much in size forms a long 
thin passage which ends in the anus. 
Glands: —Like other Cytheridae no mid-gut diverticula, di¬ 
gestive gland, is present in Entocythere. 
Shell-gland :—The upper part of the shell-gland is situated 
just in front of and on a level with the eye; extending from 
here forward and downward the lower edge being equidistant 
between the dorsal and ventral surfaces of the shell. A study 
of sagittal and transverse sections shows only four large cells 
on each side as belonging to the gland. Never more than two 
of these cells were shown in any transverse section and in only 
one sagittal section were all four present. PL XII, fig. 17. 
These large cells appear more like the cells of the racemose por¬ 
tion of the shell-gland in Cypris muncronota than any of the 
other figures of this gland given by Claus (3). The nucleus is 
irregular in outline containing one or two small nucleoli and a 
rather dense chromatic network scattered evenly through all its 
parts. In each cell, especially near the outer margin, are a 
number of vacuoles. The three cells which lie closest together, 
the fourth being more ventral than any of these, contain within 
