FIGURE 40. Anyuta anastema 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 40. Anyuta anastema n. gen., n. sp. Holotype, ZIRAS 1/50718. A, part of fascicle with autozooidal peristomes and two dimorphic peristomes with flanges; note large shallow alveoli on sides of peristomes; B, two peristomes, left one dimorphic; C, skeletal microstructure of part of peristome in L; D–G, subfascicles with both autozooidal and flanged dimorphic peristomes; H, close-up of squat flanged dimorphic peristome in E; note small alveoli on flanks of peristome; I, close-up of lower dimorphic peristome in F, showing it to be derived from an autozooidal peristome by its partial closure; J, base of column; K, L, close-ups of perforated flanges of dimorphic peristomes. Scale bars: A, B, D, F, 250 µm; G–J, 100 µm; K, L, 50 µm; C, 25 µm.