FIGURE 27. Alyonushka echinata n. gen., n in Bryozoa (Cyclostomata and Ctenostomata) from polymetallic nodules in the Russian exploration area, Clarion - Clipperton Fracture Zone, eastern Pacific Ocean-taxon novelty and implications of mining

FIGURE 27. Alyonushka echinata n. gen., n. sp. Details of morphology. A, C, H, K, holotype, ZIRAS 1/50712; B, D–F, G, I, J, paratype, ZIRAS 2/50713. A, C, apical and oblique views of calyx with gonozooid (ooeciostome arrowed); note variable sizes of alveolar openings; B, D, oblique and near-profile views of calyx with gonozooid, with broken entrance to gonozooid arrowed; E, skeletal ultrastructure of outer peristomial wall; F, G, close-ups of broken entrance to gonozooid; H, lateral view of zooidal peristome with simpler spiky structures than those more proximal at calyx surface; I, J, spinules on interior walls of peristomes; K, variable alveolar openings and spinose texture of gonozooid surface. Scale bars: A–D, 200 µm; E–G, 100 µm; H–K, 50 µm.