dc:creator"Grischenko, Andrei V.; Gordon, Dennis P.; Taylor, Paul D.; Kuklinski, Piotr; Denisenko, Nina V.; Spencer-Jones, Mary E.; Ostrovsky, Andrew N.";
dc:creator"Grischenko, Andrei V.; Gordon, Dennis P.; Taylor, Paul D.; Kuklinski, Piotr; Denisenko, Nina V.; Spencer-Jones, Mary E.; Ostrovsky, Andrew N.";
dc:date"2022";
dc:title"Taxonomy, ecology and zoogeography of the Recent species of Rhamphostomella Lorenz, 1886 and Mixtoscutella n. gen. (Bryozoa, Cheilostomata)";
dc:description"FIGURE 10. Rhamphostomella alutacea Gontar, 1993. ZIRAS 2/50123 (western Kamchatka, Sea of Okhotsk). A. Colony margin with developing zooids. B. Orifice, showing median lyrula and lateral denticles. C. Close-up of suboral avicularium. D, E. Group of non-ovicellate zooids in young part of colony. F, G. Ovicellate zooids in older part of colony, with ooecia embedded in secondary calcification arising from surrounding zooids. H. Close-up of ovicellate zooid, with coarsely granulate frontal shield and ooecium having pseudopores overlain with secondary calcification. I. Interior of the frontal shield, showing ring scar, areolae and proximal area with chevron-shaped communication slit of ooecium (arrow). J. Basal colony surface. K. Close-up of frontal shield interior, showing ring scar and exterior wall microstructure of umbonuloid component. L. Lateral view of zooidal lateral wall, showing mural pore chambers, and ooecium (to the right) embedded in secondary calcification. Scale bars:A, J, 500 μm; B, H, I, 100 μm; C, K, 50 μm; D–G, 250 μm; L, 200 μm.";
dc:description"FIGURE 18. Rhamphostomella radiatula (Hincks, 1877).ZIRAS 19/50114 (Medny Island, Commander Islands, Bering Sea).A. Developing zooids with forming ooecia near colony margin. B. Distal view of marginal zooids with developing ooecia (arrows). C. Suboral avicularium. D. Non-ovicellate zooids in relatively young part of colony.E.Ovicellate (to the right) and non-ovicellate zooids with well-developed, bulge-like coarse tubercles of secondary calcification in older part of colony. F. Single ovicellate zooid, showing form of secondary orifice and ooecium in relatively young part of colony. G. Group of ovicellate zooids with ooecia overgrown by secondary calcification in relatively young part of colony. H. Distal view of ovicellate zooids, showing suboral avicularium and median process in older part of colony. I. Interior of frontal shield, showing lyrula, ring scar and areolae. J. Close-up of frontal-shield interior, showing median lyrula. K. Basal surface of colony that was overgrowing another bryozoan colony, Celleporella hyalina. L. Interior of frontal shield, showing ring scar and exterior wall microstructure of umbonuloid component. M. Lateral section of zooids showing two ooecia, suboral avicularium, areolae (upper row) and zooidal lateral walls with mural pore chambers. Scale bars: A, B, G, H, 250 μm; C, J, L, 50 μm; D, K, 500 μm; E, F, I, 100 μm; M, 200 μm.";
