Drowned Atolls

Abstract

As Captain Wharton speaks of the Macclesfield Bank as the so-called “drowned atoll” of the China Seas, it may be interesting to note that in the recent survey of it there were found no less than 15 genera, including 27 species, of living corals growing in depths from 21 to 44 fathoms, the dredge at each haul always bringing up living specimens, and of these only four were found growing on the more shallow rim of the Tizard Bank.