| Summary: | A review of the pore patterns of deep-sea benthic foraminifera is presented with a discussion of their characteristics, function and relationship with dissolved oxygen levels. Pore characteristics of deep-sea benthic foraminifera are of timely interest due to their potential for reconstructing dissolved oxygen conditions from the sedimentary record. Scanning electron micrographs of 20 epifaunal and infaunal deep-sea taxa from the Sulu Sea, Monterey Bay, California Bight and northwest Atlantic Ocean are presented to illustrate the wide range of pore patterns found in deep-sea taxa. New SEM observations of three taxa with biconvex test shapes, <i>Oridorsalis umbonatus</i>, <i>Hoeglundina elegans</i>, and <i>Epistominella umbonifera</i>, suggest that these taxa have an infaunal habitat for at least part of their life span.
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