PLATE XXVI. 
1. Anterior dorsal region of Nephthys tnssophyllus (Station 151). 
Proboscis partly extruded, .... Slightly enlarged. 
2. Tip of the tail of the foregoing specimen, viewed from the dors’um. Enlarged. 
3. Anterior dorsal region of Nephthys trissophyllus, from Kerguelen, Enlarged. 
4. Ventral aspect of the anterior region of Nephthys trissophyllus, 
with extruded proboscis, from Balfour Bay, Kerguelen, . Enlarged. 
5. Dorsal view of Nephthys trissophyllus, with proboscis extruded, . Enlarged. 
6. Dorsal view of the anterior region of Nephthys verrilli, . . Enlarged. 
7. Similar view of same species, with the proboscis extruded, . Enlarged. 
8. Dorsal view of Nephthys dihranchis, from the Arafura Sea, showing 
projection (from rupture) of the dorsal muscles. 
9. The same {Nephthys dihranchis) in profile, . . Not so much enlarged. 
10. Dorsal aspect of the anterior region of Nephthys phyllohranchia, 
with the proljoscis partly extruded. . . . Enlarged. 
