FIGURE 18. Setosella alfioi n in Revision of the genus Setosella (Bryozoa: Cheilostomata) with description of new species from deep-waters and submarine caves of the Mediterranean Sea

FIGURE 18. Setosella alfioi n. sp. Holotype: PMC. B27. 30.6.2018a, EOCUMM 1995, Sample 27B, 1096 m depth, off Eolian Islands, SE Tyrrhenian Sea. a. Morphology of the largest colony fragment. b. The distal colony tip in lateral view to show the thickness of the zooids. c. Frontal view of a zooid between the proximal and the distal vibracula, with the incipient budding of a new disto-lateral zooid; note the smooth gymnocyst and cryptocyst and the relatively large and short asymmetrical opesiules, placed at some distance from the orifice. d. Close-up of the orifice with the rounded proximal corners and the distal arched denticulate shelf. e. Lateral view of a vibraculum with the raised distal rostrum. f. The only observed ovicellate zooid. g. Closeup of the ovicell with the wide frontal window. h. Frontal view of a vibraculum with the slightly beaded talon, the lateral, blunt condyles and the distal narrow arched palatum. Scale bars: a = 500 μm; b, c, g = 200 μm; d = 50 μm; e, f, h = 100 μm.