FIG. 3 in First record of the sponge genera Crambe and Discorhabdella for the eastern Pacific, with description of three new species

FIG. 3. Spicules of Discorhabdella littoralis n. sp.: (a) tyles of ectosomal subtylostyles; (b) feeble spines around the point of an ectosomal subtylostyle; (c) tyle of a choanosomal tylostyle, on which a slight tubercle (tb) is visible; (d-f) fully grown acanthostyles; (g, h) developing stages of acanthostyles, in which axial canals (ax) are visible in the tyle; (i) sigma.