Figure 3 in The genus Adeonella (Bryozoa, Ascophora) in the Mediterranean, with description of two new living species and rediscovery of a fossil one

Figure 3. Adeonella calveti Canu and Bassler, 1930. All figures from the same colony, from an overhang, off Acitrezza (near the Ciclopi Islands), about 40 m. (A) Some zooids from a newly formed branch, just behind the growing tip. Note the morphology and the distribution of frontal avicularia. Scale bar: 500 µm. (B) Detail of (A) to show the drop-shaped notch left by the convergent growth of the proximal peristomial wings. Scale bar: 50 µm. (C) The primary orifice covered by the operculum. Scale bar: 20 µm. (D) A colony branch showing dimorphic diamond-shaped central zooids and subrectangular marginal zooids. Scale bar: 1 mm. (E) Young zooids with protruding peristomes and transversely elliptical secondary orifices. Scale bar: 200 µm. (F) Zooids from the branch sides with their subtriangular avicularia located lateral to the spiramen, medially and distally directed. Scale bar: 500 µm. (G) Developing zooids from the growing tip. Note the early