238 A. E. Verrill—The Bermuda Islands; Coral Reefs. 
The calicles project but little and are usually surrounded by a 
shallow depression or fosse and outer circular ridge, sometimes as 
high as the calicles. 
It is common at the depth of 2 to 10 fathoms or more, in the 
sounds and channels between the reefs, and also in Harrington 
Sound, ete. 
Oculina pallens Ehrenberg. Jvory Coral. Figure 92. Plate xxxvi, fig. 2 (8). 
Corall. Rothen Meeres, p. 79, 1834. Dana, Zodph., p. 67, fig. 29, p. 395, 1846. 
Pourtalés, Florida Reefs, pl. iii, figs. 14-17, 1888. 
20culina speciosa Edw. and Haime, Monog., p. 67, pl. iv, fig. 1, 1850; Hist. 
Corall., ii, p. 106, 1857. Quelch, op. cit., p. 50 (descr. and notes on the 
original type, examined). ’ 
Oculina pallens Verrill, these Trans., xi, p. 175, 1901. 
This, when well grown, is a handsome species, branching in an 
aborescent form. The branches are larger and less numerous than in 
91 : 93 
A 
Figure 91.—a, Oculina varicosa, var. conigera; b, O. Valenciennesi. About 
natural size. Phot. by A. H. V. 
Figure 92.—Oculina pallens ; a, one of the polyps expanded, x about 24; b, a 
group of tentacles more enlarged to show the alternation. By the author. 
Figure 93.—O. coronalis. Section of a calicle much enlarged. After Quelch. 
O. diffusa, to which it is nearly allied. It has calicles less swollen 
and less prominent than those of O. varicosa. It occurs in the same 
places with the preceding. 
Oculina coronalis Quelch. Ivory Coral. Figure 93. 
Voy. Challenger, xvi, p. 49, pl. i, figs. 6-6c. Verrill, these Trans., xi, p. 177, 
1901. 
This is a loosely branched coral distinguished mainly by the circle 
of 12 pali around the columella being rather more prominent than 
usual. But all the species vary in this respect. It may be merely a 
