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 Ctenophora Eschscholtz, 1829 Notes [ 2 classes: 3 orders: 4 families: 4 genera: 4 species ] ' Ctenophora ' means "comb-bearing" -deriving from the Greek κτείς (kteis), meaning "comb", and -φορος (- foros ), a suffix meaning "carrying". Ctenophora (comb jellies) are a phylum of predatory marine invertebrates that are characterised by having eight rows of ciliated plates for locomotion. The phylum is divided into two classes containing 150-200 extant species worldwide ( Mills 2017 ). Around 32 ctenophore species are known to the Pacific coast of North America ( Cairns et al. 2002 ), 13 of which are known within the Salish Sea-though only five or six of these species are relatively common (Claudia Mills, pers. comm. 2021). Four species are reported for Galiano Island, the least common of which is Euplokamis dunlapae Mills, 1987 (Fig. 6 ). This deep water species is abundant at 250 m depth, but only occasionally occurs above 100 m with mixing of the water column, especially during spring tides ( Mackie et al. 1992 ). Most ctenophores are pelagic species, with those most well known occurring near the ocean surface and those less understood found at greater depths. Ctenophores possess sticky cells called colloblasts to capture prey and are are highly diverse in morphology (e.g. egg-shaped cydippids, flat and generally combless platyctenids and large-mouthed beroids). The phylogenetic position of Ctenophora in relation to other phyla is still debated and their taxonomy is in dire need of revision ( Dunn et al. 2015 , Mills 2017 ). References for Northeast Pacific ctenophores include Kozloff (1996) , Wrobel and Mills (2003) , Lamb and Hanby (2005) , Carlton (2007) , Baldwin (2009d) , Harbo (2011) and Jensen et al. (2018) . For annotated records of ctenophores reported for Galiano Island, see supplementary materials (Suppl. material 4).