PLATE XXXIIa. 
Fig. 1, 
Fig. 2. 
Fig. 3. 
Fig. 4. 
Fig. 5. 
Fig. 6. 
Fig. 7. 
Fig. 8. 
Fig. 9. 
The Lettering is the same in all the Figures. 
e. Dorsal longitudinal muscles. j. Alimentary canal. 
/. Ventral longitudinal muscles. n. Nerve cords. 
g. Oblique muscles. 
Tip of a dorsal bristle of Dasylepis equitis, .... 
Extremity of a ventral bristle of the same, .... 
Tip of a dorsal bristle of Polynoe {?) ascidioides, 
Tip of a supraspinous ventral bristle of the foregoing, 
Extremity of one of the inferior ventral bristles. 
Transverse section of the anterior third of the body-wall of Poly- 
melia levisetosa, ...... 
Transverse section of the anterior’ third of the body- wall of Eulepis 
ivyvillei, ....... 
Foot of Nephthys verrilli, ...... 
Transverse section of the body- wall in the anterior third of 
Thalenessa digitata, ...... 
X 210. 
X 210. 
X 350. 
X 350. 
X 350. 
X 24. 
X 40. 
X 40. 
X 24. 
