FIGURE 19A–H in Description of new chiactine-bearing sponges provides insights into the higher classification of Calcaronea (Porifera: Calcarea)

FIGURE 19A–H. Sarsinella karasikensis sp. nov. A: histological section of the oscular region. B–C: SEM images of diactines I and II. D: SEM image of cortical triactines I. E–F: SEM images of cortical triactines II. G: SEM image of tubar tetractines. H: chiactines. Abbreviations: CtrI = cortical triactines I; DiI = diactines I; DiII = diactines II; Tut = tubar tetractines; Osf = oscular frame.Published as part of Alvizu, Adriana, Xavier, Joana R. & Rapp, Hans Tore, 2019, Description of new chiactine-bearing sponges provides insights into the higher classification of Calcaronea (Porifera: Calcarea), pp. 201-251 in Zootaxa 4615 (2) on page 243, DOI: 10.11646/zootaxa.4615.2.1, http://zenodo.org/record/324463