PLATE XXI. 



FIG. I. Eudistylia gigantea sp. nov., p. 210. Lateral view, X i- 



2. Opposite view of same specimen. 



3. Eudistylia flumosa sp. nov., p. 212. Ventral view of anterior portion of 



type, slightly enlarged. 



4. Lateral view of same specimen, about natural size. 



(300) 



