The so-called arms are the longer, feathery-like parts of the Antarctic strawberry feather star shown in the image. It belongs under the class of Crinoidea, which includes starfish, sea urchins, sand dollars, and sea cucumbers, and is a type of feather star — hence the less formal "Antarctic feather star" name. The Antarctic strawberry feather star stands out in particular due to the number of "arms" it has. "So we went from one species with 20 arms to now eight species — six with 20 arms and two with 10 arms under the name Promachocrinus," Rouse said. According to the paper, the Antarctic strawberry feather star was found somewhere between 215 feet to about 3,840 feet below the surface.

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Persons: Greg Rouse, Rouse, Emily McLaughlin, Nerid Wilson, Greg W, We've, kerguelnsis, Eric A Organizations: Service, Privacy, University of California, university's Scripps, of Oceanography Locations: Wall, Silicon, San Diego, Australia