Fig. 3 in New and little-known Cheilostomata (Bryozoa, Gymnolaemata) from the NE Atlantic

Fig. 3. Hippomenella mucronelliformis (Waters, 1899). A. Overview of autozooids in the lectotype (MM 3780); note the extremely long and slender mandibles of the small avicularia. B. Early astogenetic part of the paralectotype (MMF 42297), including the zooid interpreted by Brown (1949) to be the ancestrula (at lower left) but which is here considered as the first autozooid; note that the avicularia in early astogenetic zooids are proximally positioned and directed. C. Autozooids and an ovicellate zooid at the colony margin; note that the forming endooecium is not perforated by pseudopores and that the suboral mucro is absent in early ontogenetic zooids, forming only during later ontogeny (NHMUK 1947.8.12.1; photo: M.E. Spencer Jones). D. Close up of orifice (lectotype, MM 3780). E. Interior frontal shield with the umbonuloid ring-scar framed by areolar pores (NHMUK 1947.8.12.1; photo: M.E. Spencer Jones). F. Ovicellate zooid; note the superficial pits on the distolateral endooecium (NHMUK 1947.8.12.1; photo: M.E. Spencer Jones). G. Lateral view of a zooid (distal is to the right), showing five multiporous pore plates in the vertical wall (NHMUK 1947.8.12.1; photo: K.J. Tilbrook). Scale bars: A = 400 µm; B, C = 200 µm; D = 50 µm; E, F, G = 100 µm.