Toward an atlas of Salish Sea biodiversity: the flora and fauna of Galiano Island, British Columbia, Canada. Part I. Marine zoology Author Simon, Andrew D. F. https://orcid.org/0000-0002-5358-8974 Institute for Multidisciplinary Ecological Research in the Salish Sea, Galiano Island, Canada adfsimon@imerss.org Author Adamczyk, Emily M. Institute for Multidisciplinary Ecological Research in the Salish Sea, Galiano Island, Canada & University of British Columbia, Vancouver, Canada Author Basman, Antranig Institute for Multidisciplinary Ecological Research in the Salish Sea, Galiano Island, Canada Author Chu, Jackson W. F. https://orcid.org/0000-0002-7776-9446 University of Victoria, Victoria, Canada Author Gartner, Heidi N. Royal British Columbia Museum, Victoria, Canada Author Fletcher, Karin Port Orchard 98366, Port Orchard, United States of America Author Gibbs, Charles J. Pacific Marine Life Surveys, Port Coquitlam, Canada Author Gibbs, Donna M. Pacific Marine Life Surveys, Port Coquitlam, Canada Author Gilmore, Scott R. 7494 Andrea Cres, Lantzville, Canada Author Harbo, Rick M. Royal British Columbia Museum, Victoria, Canada Author Harris, Leslie H. Natural History Museum of Los Angeles County, Los Angeles, United States of America Author Humphrey, Elaine Institute for Multidisciplinary Ecological Research in the Salish Sea, Galiano Island, Canada & University of Victoria, Victoria, Canada Author Lamb, Andy Pacific Marine Life Surveys, Port Coquitlam, Canada Author Lambert, Philip Royal British Columbia Museum, Victoria, Canada Author McDaniel, Neil McDaniel Photography, Vancouver, Canada Author Scott, Jessica Ocean Wise, Vancouver, Canada Author Starzomski, Brian M. University of Victoria, Victoria, Canada text Biodiversity Data Journal 2022 2022-03-10 10 76050 76050 http://dx.doi.org/10.3897/BDJ.10.e76050 journal article http://dx.doi.org/10.3897/BDJ.10.e76050 1314-2828-10-e76050 440282C625BD5D90A9623563DB6850F5 Sipuncula Stephen, 1964 Notes [ 1 class: 1 order: 1 family: 1 genus: 1 species ] ' Sipuncula ' is the Modern Latin plural form of the genus Sipunculus , based on the Latin 'siphunculus', meaning "small tube." Sipuncula (peanut worms) are a small phylum of bilaterally symmetrical, unsegmented marine worms, represented by 150 species worldwide ( WoRMS Editorial Board 2021 )-though a certain amount of cryptic diversity is understood to remain hidden in the phylum ( Hsu et al. 2013 ). Based on molecular evidence, Sipuncula are now considered to be nested within the phylum Annelida along with Echiura (spoon worms) ( Boyle and Rice 2014 ), yet are here treated as a separate phylum. Eight species of Sipuncula are known to the Northeast Pacific ( Carlton 2007 ), of which one, Golfingia (Golfingia) vulgaris vulgaris (de Blainville, 1827) (Fig. 12 ), is reported for Galiano Island. Due to their burrowing habit, sipunculids are obscure organisms easily overlooked by divers and casual beachcombers. Some Sipuncula inhabit rock crevices or similar protected areas, while others are found in sand or mud. With additional search effort, other taxa likely to be uncovered in the waters around Galiano Island include Phascolosoma (Phascolosoma) agassizii Keferstein, 1866 and Themiste (Themiste) pyroides (Chamberlin, 1919). Identification relies on features of the tentacles which tend to be drawn into the body when contracted, hence the common name "peanut worms." Regional references to the sipunculids can be found in Kozloff (1996) , Lamb and Hanby (2005) and Carlton (2007) . For annotated records of sipunculids reported for Galiano Island, see supplementary materials (Suppl. material 10).