A, E. Verrill— The Bermuda Islands; Geology. 187 
Margaritophora radiata (Lam.). Pearl Oyster. Plate xxxv B, figs. 2, 2a. 
Fragments retaining their pearly luster are occasionally found. 
Ostreea frons Linn. 
Fragments are not rare. 
Corals. 
?Mycetophyllia Lamarckana Edw. and Haime, (?)=Manicina areolata of 
Nelson (an incorrect determination). 
The specimen, which is preserved in Coll. Geological Soc. London, 
has been studied by Gregory. If correctly named by him* (as J. 
Lamarcki), op. cit., p. 266, it is a scarce West Indian species, not 
now living in Bermuda. 
If beach-worn, as is probable, I should suspect that it was rather 
one of the common Bermuda species of Mussa. (See p. 77, note.) 
? Meandra areolata (Linn.) Oken. 
Verrill, these Trans., vol. xi, p. 81-84, pls. xi, xii, 1901. 
Manicina areolata Lam. Lieut. Nelson, op. cit., 1840. 
This common West Indian species is not now found living in 
Bermuda. I have formerly suggested that it was a mistaken identi- 
fication of the last species, but this needs confirmation. 
Found by Nelson in the beach-rock of Ireland Island. 
Orbicella cavernosa (Linn.). Figure 87. Plate xxx 4, fig. 2. 
Verrill, these Trans., vol. xi, pp. 102, 171, 1901. 
This species was recorded as a fossil from Bermuda, in Coll. 
Geolog. Soc. London, by Gregory (Proc. Geolog. Soc., li, p. 271), 
under the name, O. radiata. 
Madracis decactis (Lym.). Figures 94, 95. 
This species was recorded by Gregory, op. cit., p. 250, as found 
fossil in the beach-rocks. We did not find it, except living. 
Agarica fragilis. Figures 101, 101a. 
Agaricia undata Nelson, 1840. 
Found with the last by Nelson. Small fragments of this common 
thin and fragile species are occasionally found, both in the beach 
deposits and in the later eolian limestones. 
* See these Trans., xi, p. 68, where, however, this identification was erron- 
eously attributed to Dr. Vaughan. Whether it be Nelson’s specimen may be 
doubtful. 
