FIGURE 1. Labioporella aviculifera (Silén, 1941) n. comb., Japan. A–E. Holotype SMNH-Type-3082. A. Group of autozooids and an interzooidal avicularium. B. Close-up of zooidal opesia and opesiules. C. Group of autozooids, including zooids at colony bifurcation, irregular zooids at the encounter edge between two colonies, a repaired zooid, and an interzooidal avicularium. D. Group of autozooids, the one at the bottom right showing the interzooidal communication through the opesia. E. Close-up of the granular frontal shield with circular pseudopores. Note the size of granules decreasing distad. F–J. SMHN-132263. F. Two intramurally budded zooids and interzooidal avicularium with rounded, raised rostrum. G. Close-up of a zooid showing opesiules and a broken rectangular chamber of an interzooidal avicularium. H. General view of a colony overgrown by two additional colonies (or colony lobes) with preserved membranes, one of these consisting only of an ancestrula and first budded zooid, and a cyclostome. I. Close-up of two autozooids with membranes and semicircular opercula. J. Lateral view of a group of zooids showing the polypide tube and interzooidal communications through uniporous septula. Scale bars: A, C, D, F, I, J = 500 µm; B = 200 µm; E = 100 µm; G = 300 µm; H = 1 mm.