282 A. E. Verrill—The Bermuda Islands; Coral Reefs. 
polyps, rather short and blunt, arranged in two alternating rows. 
Surrounding the disk, outside the tentacles, there is a circle of angu- 
lar pointed lobes, usually white in color, corresponding to the inner 
128 
Figure 124.—Protopalythoa grandis, two polyps in different states of expansion, 
about nat. size. Drawn by the author from life. 
Figure 125,—The same, a detached polyp with elongated column, slightly 
enlarged. Drawn by A. H. V. 
Figure 127.—The same. Two polyps of the short form, with white marginal 
lobes and ocher-yellow disk, expanded, somewhat reduced. Drawn by A. 
Have 
Figure 128.—The same. Group of polyps, contracted, % natural size. 
