FIGURE 4 in New species of Crella (Pytheas) Topsent, 1890 and Crellomima Rezvoi, 1925 (Crellidae, Poecilosclerida, Demospongiae) from Chilean shallow and Argentinean deep waters, with a synthesis on the known phylogenetic relationships of crellid sponges

FIGURE 4. Crella (Pytheas) desventuradae Fernandez, Gastaldi, Zapata-Hernández & Hajdu, sp. nov.: type material in life and preserved (A–F). A, massive specimen in life (holotype—MNHNCL POR-15019). B, detail of the surface of the specimen in life with oscules and subectosomal channels. C–F, holotype in preservative (ethanol 70%) showing a cavernous choanosome (fragment of the holotype—MNRJ 19228) and a membrane at the surface (C, indicated by arrow), an oscule partially covered by the membrane (D), pore sieves (E) and a pore sieve in detail (F). Scale bars: A = 5 cm; B–C = 1 cm; D = 2 mm; E = 1 mm; F = 0.5 mm.