3b04 THE ATLANTIC. [CHAP. Vv. 
fishes. The fauna seemed, however, to be of the ordinary char- 
acter, such as we found in shallow water everywhere round the 
Islands. As the weather did not look by any means promis- 
ing, we weighed anchor as soon as the boats returned, and pro- 
ceeded on our course to the north-west. 
On the 24th we sounded and dredged in 2650 fathoms, 43 
miles in a north-westerly direction from Gibbs’s Hill Light- 
Fia. §8.—Madracis asperula. 
house; the dredge brought up a little gray calcareous mud still 
evidently chiefly derived from the Bermudas reef; with G/o- 
bigerine, Orbuline, some larger foraminifera, some otolites of 
fishes, and some shells of Clio and Diacria. It was evident, 
from the mud in the dredge-bag containing many more foram- 
inifera than some which had been caught in bulk on the tan- 
gle-bar, that a large quantity of fine débris had been washed 
