Detrital feeding in Xeniostoma inexpectans, new genus, new species, and new subfamily Xeniostomatinae of Calliostomatidae (Gastropoda: Vetigastropoda), hosted by hexactinellid sponges of the Aleutian Islands, Alaska. Nautilus, 126(3), Oct 25 2012: 89-97. 91 [Zoological Record Volume 149]