FIGURES 18–23. FIGURES 18–20 in Fouling bryozoans in Argentine harbours (Southwest Atlantic): new records and the description of a new species

FIGURES 18–23. FIGURES 18–20. Bicellariella edentata (MACN-In 32310); 18, general aspect; 19, branch bifurcation and ovicelled zooid; 20, close-up of avicularium. FIGURES 21-23. Exochella moyanoi (MACN-In 43877); 21, general aspect; 22, growing margin, showing ovicells in different stages of development; 23, close-up of peristomes and avicularia. Scale bars. 18, 21, 22: 200 µm; 19, 23: 100 µm; 20: 20 µm.