Fourteen new species of demosponges (Porifera) from three coastal fjords in southern British Columbia, Canada Author Ott, B. Author Mcdaniel, N. McDaniel Marine Surveys, 3540 West 35 th Ave, Vancouver, BC, Canada, V 6 N 2 N 5. Author Humphrey, E. 0000-0002-3743-0261 text Zootaxa 2024 2024-06-05 5463 2 151 200 http://dx.doi.org/10.11646/zootaxa.5463.2.1 journal article 298422 10.11646/zootaxa.5463.2.1 6a4fdf03-550a-415f-88c7-47783af83576 1175-5326 11610751 FDB4CE85-B07E-49C7-AABF-A67914F17E6B Genus Hymeniacidon Bowerbank, 1858 Hymeniacidon species are defined as Halichondriidae with encrusting or massively lobate shape and exclusively small styles (> 500 mm ) for megascleres. Ectosomal tangential skeleton of intercrossing bundles and single megascleres. Choanosomal skeleton with ascending vague bundles and many loose, confusedly arranged megascleres ( Erpenbeck & Van Soest 2002 [2004]). Fifty-four species are recognized worldwide (de Voogd, et al. 2023). The genus is cosmopolitan existing in all of the world’s oceans with the exception of the Bering, Black and Caspian seas; depth distribution is discontinuous from littoral to 440 m .