FIGURE 3 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 3. Crella (Pytheas) chiloensis Fernandez, Gastaldi, Pardo & Hajdu, sp. nov.: skeleton of the holotype―IZUA- POR 170 (A–D) and spicules of the holotype (E–J, in SEM) and paratype―MNRJ 16989 (K–P, in SEM). A, transverse section. B, ectosomal region with bundles of tornotes and choanosomal region with tracts of tornotes echinated by choanosomal acanthostyles I and II. C, detail of the ectosomal region with tornotes disposed in a perpendicular arrangement and ectosomal acanthostyles scattered. D, choanosomal acanthostyles I and II echinating the base of the skeleton and a spongin fiber, and a few ectosomal acanthostyles scattered. E, tornotes. F, extremities of the tornotes. G, choanosomal acanthostyles I. H, choanosomal acanthostyles II. I, ectosomal acanthostyles and acanthoxeas (in right). J, arcuate isochelae. K, tornotes. L, extremities of the tornotes. M, choanosomal acanthostyles I. N, choanosomal acanthostyles II. O, ectosomal acanthostyles III. P, arcuate isochelae. Scale bars: A = 500 µm; B = 150 µm; C–D = 50 µm; E = 20 µm; F = 5 µm; G–I = 20 µm; J = 5 µm; K = 20 µm; L= 5 µm; M–O = 20 µm; P = 5 µm.