An abyssal holothuran (Scotoplanes), a relative of the sea star, cruises the deep seabed for nutritious bits. (They're informally called "sea pigs.") 6 Deep-sea gigantism in amphipods. Most amphipods are the size of large ants. These, recovered from the Ker- madec Trench, measured 28 centimeters (11 inches). A blind tripod fish. The very long, curved projections on the fish's fins and gills are thought to aid in sensing the distant vibrations of prospective prey. A xenophyophore, the largest single-celled animal known, rests on the seabed absorbing nutrients. Figure 16.21 Some representative deep benthic animals. Bahamas Deep-Sea Coral Expedition Science Party. NOAA-CER Photo courtesy of Ocean Networks Canad a Image Courtesy of IFE, URIJAO, Lost City science party, and NOAA Alan Jamieson, Uhiersity of Aberdeen

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