Description: English: A rare monoplacophoran (Neopilina sp.) observed in the abyss by the NOAA Okeanos Explorer mission "2017 American Samoa Expedition: Suesuega o le Moana o Amerika Samoa". Further information on Echinoblog. Date: 9 March 2017. Source: http://oceanexplorer.noaa.gov/okeanos/media/exstream/exstream.html. Author: NOAA Okeanos Explorer.