FIGURE 2. Echinoclathria seguama n in Three new species of Poecilosclerida (Porifera, Demospongiae, Heteroscleromorpha) from the Aleutian Islands, Alaska

FIGURE 2. Echinoclathria seguama n. sp. A, Holotype. Top left: view into the tube. Below: side view. B, Paratype. Top left: view into the tube. Below: side view. C, Reticulate skeleton of single choanosomal styles near the inner walls. D, Plumose skeleton of ascending, branching spicule tracts connected by single spicules and paucispicular tracts. E, A thin ectosomal veneer with abundant isochelae and some single ectosomal thin styles (upper left, darker) above the choanosomal reticulation of single spicules (lower right) near the inner walls. F, Ascending plumose polyspicular tracts with brushes of thin ectosomal styles perpendicular to the surface forming a palisade at the outer walls. G, The ectosomal palisade of brushes of thin styles is sometimes incomplete, then single thin styles and microscleres are in the gaps. H, Brushes of thin styles, points facing out, connected by single spicules.