FIGURE 1 in Bridging the gap: first record of sponge genus Strongylodesma in Australian waters

FIGURE 1. Strongylodesma australiense sp. nov., holotype NMVF246384: B. Close view showing porefield mounds (lower half) and flush oscule (arrow); C.–G. Range of megascleres showing irregular thickening and slightly sinuous curves in the shorter spicules in F. and G.; H. 'Shepherd's crook' modification; I. Undeveloped 'shepherd's crook' modification; J. Pseudotylote modification; K. Bifurcate proximal end of megasclere; L. Centrotylote modification; M. Hand-section showing thick ectosome of confused to paratangential megascleres, with a thin, clear collagenous layer beneath (arrow), and choanosome with paratangential interstitial megascleres; N. Hand-section showing massive primary tract beneath ectosome.