246 HIROSHI OHSHIMA 
Fig. 234.—Ventral view of doliolaria in which the ring canal is not yet 
closed (no, 12 represented in Table II in the text). The internal cavities 
shown as solid bodies ; gut not represented. x 200. 
Fig. 238.—Left-side view of the same. x 200. 
Fig. 244.—Cross-section cut along the plane 1 in fig. 23. Seen from 
behind anteriorly. x 200. 
Fig. 248.—Section immediately next to the former. x 200. 
Fig. 24c.—Section immediately next to the former, cut along the 
plane 2 in fig. 23. x 200. 
Fig. 24p.—Section immediately next to the former. x 200. 
Fig. 24.—Third section below the former, cut along the plane 3 in 
fig. 23. x 200. 
Fig. 24r.—Fifth section below the former, cut along the plane 4 in 
fig. 23. x 200. 
Fig. 25.—Sagittal section of doliolaria cut through the pore-canal 
(no. 8 represented in Table IT in the text). x 200. 
