Figure 8 in An overview on the freshwater sponge fauna (Demospongiae: Spongillida) of New Zealand and New Caledonia with new insights into Heterorotula from deep thermal vents of the Lake Taupo

Figure 8. Morphotraits of Spongillida gen. sp. (cf. Pottsiela; BMNH 23.10.7.1 partim; FW-POR 429). See Figure 6. Microphotographs of gemmules and spicular complement morphotraits. (A) gemmular theca with outer layer armed by spiny oxeas/strongyles/strongyloxeas as tangential gemmuloscleres irregularly arranged. (B) gemmules sharing the outer layer. (C) dense gemmuloscleres tangentially arranged at the outer surface. (D) gemmular theca (cross-section) with multilayered gemmuloscleres (pneumatic layer is absent). (E–G) smooth oxeas as skeletal megascleres (A–D, SEM; E–G, LM).Published as part of Pronzato, Roberto & Manconi, Renata, 2019, Journal of Natural History 53 (35) on pages 2207-2229, DOI: 10.1080/00222933.2019.1694716, http://zenodo.org/record/365489