PLATE XXVIII. 



FIG. I. Schizobranchia dubfa sp. nov., p. 208. Lateral view, X 3- 



2. Schizobranchia concinna sp. nov., p. 208. Dorsal view of anterior por- 



tions of a medium sized specimen, X about 3. 



3. Crucigera formosa sp. nov., p. 233. Branchia without terminal fila- 



ment, X 5- 



4. Another branchia with short terminal filament, X about 2. 



5. Schizobranchia insignis sp. nov., p. 206. Branchia, X about 2. 



6. Schizobranchia concinna sp. nov., p. 208. Branchia, X about 2. 



7. Schizobranchia nobilis sp. nov., p. 207. Branchia, X about 2. 



8. Parasabella maculata sp. nov., p. 201. Lateral view, X about 2. 



9. Ventral view of same specimen. 



10. Spirorbis asperatus sp. nov., p. 245. Mass of tubes, X about 6. 



(3H) 



