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II.—Notes on new or imperfectly known Chalk Polyzoa

Published online by Cambridge University Press:  01 May 2009

R. M. Brydone
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Extract

Three are a number of simple Cheilostomata which develop avicularia distinctly larger than the zoœcia and more or less constricted in the middle by prominent masses apparently due to infolds of the side walls. Eschara Lesueuri, Hag., sp., is a good example, and others have been figured by D'Orbigny. Similar forms are not uncommon in the English Chalk, but it is curious that all the foreign forms seem to be of branching Biflustrine habit, while all the English species I have yet met with form unilaminate sheets.

Type
Original Articles
Information
Geological Magazine , Volume 10 , Issue 5 , May 1913 , pp. 196 - 199
Copyright
Copyright © Cambridge University Press 1913

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References

page 197 note 1 Hagenow, , Die Bryozoa der Maest. Kreideb., p. 72Google Scholar, t. viii, fig. 17, and t. xii, fig. 12.