PLATE XXVIII. 



Fig. I. Schizobranckia dubia sp. nov., p. 2oS. Lateral view, X 3' 



2. Schizobranckia concinna sp. nov., p. 2oS. 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. Schizobranckia insignis sp. nov., p. 206. Branchia, X about 2. 



6. Sckizobranckia conciftna sp. nov., p. 208. Branchia, X about 2. 



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



8. Parasabella maculata sp. nov., p. 20I. Lateral view, X about 2. 



9. Ventral view of same specimen. 



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



(3H) 



