Subgenus Clathria (Microciona) Bowerbank, 1862 Clathria (Microciona) species are encrusting sponges with hymedesmioid skeletons consisting of a basal layer of spongin with megascleres embedded heads down and erect on the basal layer. Megascleres typically form ascending plumose tracts.Auxiliary styles form a tangential or paratangential layer at the surface. Microscleres include palmate isochelas and toxas (Hooper 2002 [2004])b. There are 116 accepted species worldwide (de Voogd, et al. 2023) ranging discontinuously in depth from littoral to 710 m.

Published as part of Ott, B., Mcdaniel, N. & Humphrey, E., 2024, Fourteen new species of demosponges (Porifera) from three coastal fjords in southern British Columbia, Canada, pp. 151-200 in Zootaxa 5463 (2) on page 177, DOI: 10.11646/zootaxa.5463.2.1, http://zenodo.org/record/11610751