39.— Spine, 0.77 mm. long, from right anterior interambulacrum, at ambitus. 
40.— Spine, 0.54 mm. long, from apex. 
41.— Spine, 0.21 mm. long, from madreporic plate. 
42.— Spine, 0.21 mm. long, same as Figure 41, larger magnification. 
43.— Stalk, 0.32 mm. long, of a globiferous pedicillaria, from right anterior interambulacrum 
44.— Stalk, 0.32 mm. long, same as Figure 43, larger magnification. 
Figures 25-44, Port Antonio, Jamaica. Figures 25-36, are from an alcoholic specim 
measuring 25 mm. long. Enlargement identical with those of Lord Howe Island. 
alcoholic specimen measuring 4 mm. long, magnified on larger scale. 
The position of sections prepared are indicated by dotted line. 
