Keywords: Sperosoma.jpg en A deep-sea leather sea urchin Sperosoma sp observed in the abyss off Hawaii by the NOAA Okeanos Explorer mission 2015 2015-08-18 http //oceanexplorer noaa gov/okeanos/media/exstream/exstream_02 html NOAA Okeanos Explorer other versions PD-USGov Uploaded with UploadWizard NOAA pictures uploaded by FredD Sperosoma Echinothuriidae |