FIGURES 18–23 in The identity of Sertularia reptans Linnaeus, 1758 (Bryozoa, Candidae)

FIGURES 18–23. SEM of Scrupocellaria ellisi n. sp. 18–22, NHMUK 1911.10.1.353, from Shetland, U.K.: 18, part of colony; 19, close-up of branch, with three frontal avicularia in lateral view; 20, bifurcation and ovicelled zooids; 21, close-up of axial zooid with frontal avicularium; 22, basal surface at a bifurcation. 23, colony from Scotland (NHMUK 1963.3.6.7a), showing smooth-surfaced rhizoids with distal attachment discs.