FIGURE 17. Exechonella similis n in Revision of the Recent species of Exechonella Canu & Bassler in Duvergier, 1924 and Actisecos Canu & Bassler, 1927 (Bryozoa, Cheilostomata): systematics, biogeography and evolutionary trends in skeletal morphology

FIGURE 17. Exechonella similis n. sp. Great Barrier Reef, Lizard Island (A: paratype DPUV 2016-0001-0002; F, G: paratype 2016-0001-0003; B‒E, H: holotype MTQ G100216). A, general view of non-cleaned colony from above. Peripheral zooidal buds with membranous frontal wall are well seen. Peristomes with processes are seen in some zooids in the central colony part. B, E, F, close-up of autozooids. Some lateralmost foramina with avicularia shown by arrows in B. C, peripheral part of the colony, showing peristome shape and multiporous mural septula. D, close-up of autozooid showing details of primary orifice and peristome. G, non-cleaned lateralmost foramen with avicularium. Arrowhead shows an edge of mandible. H, close-up of lateralmost foramen with avicularium associated with kenozooid in cleaned colony. Pores of kenozooid have centrally perforated cuticular plates. Scale bars: A = 1 mm; B‒E = 100 µm; F = 500 µm; G = 50 µm; H = 10 µm.