Bull. U, S. F. C. 1900, Vol. 2. — H. L, Clark. (To face page 264.) 
Plate 17. 
Fig. 1. 
3. 
4. 
5. 
Holothuria densipedes, n. sp., natural size. 
? Holothuria rathbuni Lamp., young, natural size. 
Part of the calcareous ring of H. rathbuni, < 5. 
Calcareous table from the skin of H. rathbuni, seen 
from the side, x 450. 
Table seen from above, x 450. 
Figs. 3-10 would answer equal!; 
Fig. 0. Incomplete table from pedicel, 450. 
7. Normal button of It. rathbuni, x 450. 
H. Incomplete buttons, 450. 
W. Supporting rods from pedicels, x 450. 
10. Supporting rods from tentacles, x 450. 
y well for Holothuria densipedes. 
