62 A MISSION TO VITI. 
The Balolo (Palolo viridis, E. Gray).—Fig. 1. The entire animal, na- 
tural size ; 2. Portion of the body slightly magnified; 3. Magnified figure 
of the head, with its three frontal tentacula and eyes ; the position of the 
retracted jaws is shown in the central dark space behind the tentacula ; 
4. Posterior extremity of the Balolo, dorsal aspect; figures 3 and 4 copied 
from Macdonald’s paper in ‘ Linnean Transactions,’ xxii. 
