Adeonellopsis laevis

D’Hondt, J. - L., 2006, The Henri Milne EDWARDS’ (1800 - 1885) collection of recent and fossil bryozoa, Linzer biologische Beiträge 38 (1), pp. 25-38 : 33

3. Adeonellopsis laevis (MILNE- EDWARDS 1838)

The zoarium is narrow, monostratified, dichotomously ramified, with a convex upper and a plane dorsal surface. It is very probably erect. The autozooids, a little enlarged distally, have 0,56-0,63 mm in length and 0,22-0,26 mm in width; their lateral boundaries are edged by a thin fold, demarcating a zoecial frame. Autozoecial orifice orbicular, measuring 0,09 mm in hight and 0,18 mm in width. The axial avicularium, proximal to the aperture (and attaining it), oriented forewards is 0,35-0,40 mm in length. Proximally to the avicularium exists a small spiramen, screen-like, 0,04-0,09 mm in diameter, perforated by 3 to 5 minute pores. The frontal surface is depressed; no ovicell observed. The apertures are only open on the frontal face; the dorsal side of the zooid is ornated with thin transversal crests, regularly distributed, parallel and equidistant, about 15 for a same zooid.