PLATE XXII. 



FIG. i. Myxicola glacialis sp. nov., p. 218. Lateral view of long slender form, 



Xf- 



2. Eudistylia tenella sp. nov., p. 213. Ventral view, X 



3. Opposite view of same specimen. 



4. Branchiae : a, Eudistylia gigantea sp. nov., p. 210, showing double end ; 



b, Eudistylia plumosa sp. nov., p. 212; c, Eudistylia gigantea, normal ; 

 d, Eudistylia gigantea, medium sized specimen; all X 3- 



(302) 



