EXPLANATION OF PLATE XLVII. 



Cheilonereis peristomialis, sp. nov. 



Fig. 19. — The fiftieth parapodium (x 10). 



Fig. 20. — The ninetieth parapodium (x 10). 



Fig. 21. — The everted pharynx (enlarged). 



Fig. 22. — A parapodium of a female Heterqnereid phase ( x 8) 

 from a New Zealand specimen. 



Glycera tesselata, Grube. 



Fig. 23. — A parapodium { x 35). 



Fig. 24. — A pharyngeal papilla (x 250). 



Fig. 25. — The tip of another papilla, side \dew showing the 

 terminal diiic ( x 250). 



Scione harrissoni, sp. nov. 



Fig. 26. — Anterior end from the side (x 10). Somewhat 

 diagrammatic ; the tentacles are removed with the 

 exception of one ; they were broken away in order 

 that the structure of the head might be seen clearly ; 

 the giU has been cut short. 



Fig. 27. — Ventral view (x 10). 



Fig. 28. — ^Dorsal view (x 10). The left gill is represented 

 diagrammatically, as it had been broken in examin- 

 ing the head. 



Fig. 29. — A thoracic uncinus (x 360). 

 Fig. 30. — An uncinus from above (x 720). 

 Fig. 31. — A thoracic capiiliform chseta (x 360). 



Notomastus eisigi, sp. nov. 

 Fig. 32. — Side view of greater part of the worm ( x 4). 



Fig. 33. — Dorsal view of last two thoracic and anterior abdo- 

 minal segments ( x 8). The circular marks on the ab- 

 dominal segments are the " lateral organs," outside 

 which are the angular " gills " at the upper end of 

 the neuropodial tori. The notopodial tori are close 

 together dorsally. 



Fig. 34. — An abdominal chseta (x 45). 



Fig. 35. — View of a chaeta from above (free hand) showing 

 the double wing enclosing the hook. 



