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III.—Notes on new or imperfectly known Chalk Polyzoa
Published online by Cambridge University Press: 01 May 2009
Extract
Zoarium small, highly conical, slightly compressed in one direction, very fragile.
Zoœcia rather bluntly hexagonal, subradially arranged in straight rows which from time to time diverge to admit a new row, length ·35–·4mm., width about the same; the area varies from distinctly elliptical to practically circular; maximum length ·33 mm., breadth ·3 mm.
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