FIGURE 17 in Integrative taxonomic re-description of Halisarca magellanica and description of a new species of Halisarca (Porifera, Demospongiae) from Chilean Patagonia

FIGURE 17. Halisarca desqueyrouxae sp. nov. Mesohylar cells in TEM (except F in SEM). A, rhabdiferous cell in the mesohyl (RBINS-POR. 10757); B, rhabdiferous cell in a larva (RBINS-POR. 10803); C, early stage of a pocket cell extending long pseudopods next to a spherulous cell Type 1 (RBINS-POR. 12917); D, pocket cell with engulfed granular cell (RBINS- POR. 12917); E, pocket cell with proliferation of long pseudopods forming pockets (RBINS-POR. 12917); F, pocket cell underneath complex collagenous layer in SEM (RBINS-POR. 10754); G, later stage of pocket cell with electron translucent vacuoles of different sizes (RBINS-POR. 10754); H, ultimate stage of a pocket cell, with pockets and abundant smaller clear vacuoles, expelled from the sponge through the layer of exopinacocytes (RBINS-POR. 10754). (CL = complex collagenous layer; GC = granular cell; LC = larval cell; N = nucleus; n = nucleolus; P = pseudopod; PC = pocket cell; Po = pocket; SC3 = spherulous cell Type 3; R = rhabdite; V = vacuole).