FIGURE 12 in Integrative taxonomic re-description of Halisarca magellanica and description of a new species of Halisarca (Porifera, Demospongiae) from Chilean Patagonia

FIGURE 12. Halisarca desqueyrouxae sp. nov. Semi-thin sections perpendicular to the surface of both morphotypes stained with a combination of methylene blue/azure II and basic fuchsine. Cytoplasm stains light blue and nuclei darker blue, while collagen and mesohyl stain pink to purplish-red. A to C, morphotype 1 (holotype RBINS-POR. 10803) with disphaerula larvae located deeply in the choanosome; D to F, morphotype 1 (paratype RBINS-POR. 10757); G to I, morphotype 2 (G, RBINS- POR. 12924; H & I, RBINS-POR. 10754). (AC = aquiferous canal; CC = choanocyte chamber; CF = collagen fibrils; CL = complex collagenous layer; E = embryos; L = disphaerula larva; SC = spherulous cell). White double-headed arrows indicate ectosome; black double-headed arrows indicate choanosome.