Figure 4 in Arctic cheilostome bryozoan species of the genus Escharoides

Figure 4. Escharoides jacksoni (Waters, 1900), material formerly placed in Escharoides jacksoni var. rostrata (Kluge, 1946) (ZI 1/2364), bleached. (A) Colony encrusting a stem showing autozooids and ovicellate zooids; (B) ovicellate zooid with paired lateral avicularium; (C) autozooid with one lateral avicularia; (D) orifice of autozooid with characteristic plain suboral shelf. Scale bars: 200 mm (A); 100 mm (B, C, D).