The basic premise that foraminiferal test morphology is related to function, in this case life position and feeding strategy, and thus indirectly to habitat, is detailed in Jones & Charnock (in press). The following account is based on that work but is in the form of a summary since a detailed description will be published elsewhere. The information used in this paper is from Pearce (1980) who examined Foraminifera in semi-quantitative multiple cores collected in a series of transects running approximately perpendicular to the axis of the Rockall Trough. The Foraminifera were from the surface sections, 0-2 cm, of the cores.