FIG. 4 in Unexpected diversity of the genus Collarina Jullien, 1886 (Bryozoa, Cheilostomatida) in the NE Atlantic-Mediterranean region: new species and reappraisal of C. balzaci (Audouin, 1826) and C. fayalensis Harmelin, 1978

FIG. 4. — Collarina balzaci (Audouin, 1826), NE Atlantic: A, non-ovicelled autozooid; B, two ovicelled zooids; C, ovicelled zooid, closer view of the spinocyst, the apertural bar and the articulated spines with long joints; D, avicularium adventitious to an ovicell; E, avicularium, rostrum with serrated edges; F, ancestrula with six spines. Origin: Canaries, on Cystoseira sp. Scale bars: A-C, 100 µm; F, 50 µm; D, 20 µm; E, 5 µm.