A. £. Verrill— The Bermuda Islands; Coral Reefs. 235 
Bailey Bay. The other, collected by Mr. G. Brown Goode, may 
have been from the outer reefs, but had no special label. It forms 
thick, solid crusts and also hemispheres up to a foot or more in 
diameter. Its small stellate calicles are very regular in structure, 
but vary somewhat in form and size. They have a simple, solid 
columella in the center. The living polyps have not been described. 
It occurs also in the Bahamas. 
Figure 88.—Plesiastrea Goodei, x about 5. Phot. by A. H. V. Type. 
Oculina diffusa Lam. Bush Coral. Figures 36a, 89. Plate xxviii, fig. 2. 
Oculina diffusa Dana, Zoéph., p. 397, 1846. Edw. and Haime (pars), Corall., 
li, p. 107, 1857. Pourtalés, Reef Corals, p. 65, 1877; Florida Reefs, pl. i, 
figs. 2, 3, 4 (polyps); pl. iii, figs. 10-13, 1880. Quelch, op. cit., p. 47, 1886, 
descr. 
Oculina diffusa Vaughan, op. cit., p. 294, pl. i, figs. 5, 5a, 1902. Verrill, 
these Trans., xi, p. 175, 1901. Duerden, Mem. Nat. Acad. Sci., viii, pp. 
585-888, pl. xxii, fig. 149. 
This is the most common of the Bermuda Oculinas. It grows 
abundantly in Harrington Sound, Castle Harbor, etc., as well as in 
the outer waters, but it is not found, like the massive corals, exposed 
to the heavy surf of the outer reefs, in very shallow water. In the 
outer waters it is found in abundance at the depths of 5 to 10 
fathoms or more, on the reefs and “ broken ground.” Wherever there 
are stones or ledges on the bottom for attachment, it is found in the 
sounds and channels, in 3 to 10 fathoms. I also saw a specimen at 
Bermuda, 7 inches high, taken from the bottom of a ship recently 
arrived from the West Indies. In Harrington Sound it grows in 
shallow water 3 to 4 feet deep, as well as in 5 to 8 fathoms. 
When well grown this coral forms handsome densely branched 
clusters of very numerous branchlets, becoming quite slender at the 
tips. The clumps are often a foot or more high. The calicles are 
