FIGURE 16 in Revision of the genus Setosella (Bryozoa: Cheilostomata) with description of new species from deep-waters and submarine caves of the Mediterranean Sea

FIGURE 16. Setosella spiralis Silén, 1942. Paratype 1: SMNH-Type-1893, North Atlantic Ocean, Josephine bank, 36°45,5'N, 14°12,2'W, 500–650 m. a. Well-preserved colony with tightly coiled spiral. b. Periancestrular area. c. Ancestrula with preserved cryptocystal shelf and opesia sealed by a granular closure plate. d. Distal half of a zooid with granular cryptocyst and opesiules. e. Orifice with coarsely granular distal shelf. Scale bars: a = 1 mm; b = 200 μm; c, d = 100 μm; e = 50 μm.