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III.—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

The original figure of this species was rather diagrammatic and requires supplementing. Figs. 1 and 2 are from the type-specimen, Fig. 2 being given to illustrate the rectangular aperture which the species has a tendency to develop, though quite irregularly; this rectangular outline appears to be due to the amalgamation of the two prominent tubercles into a straight-edged cap which hides the arched part of the upper lip and may be oœcial in function. The typical form of the species is definitely established in the Marsupites zone (= Marsupites band of many authors), though it only becomes abundant in the succeeding zone.

Type
Original Articles
Information
Geological Magazine , Volume 10 , Issue 10 , October 1913 , pp. 436 - 438
Copyright
Copyright © Cambridge University Press 1913

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References

page 436 note 1 Geol. Mag., 1906, pp. 289–300Google Scholar.

page 437 note 1 Cacus, a giant in Latin mythology.

page 437 note 2 Geol. Mag., 1906, pp. 289–300Google Scholar.

page 438 note 1 Geol. Mag;, 1906, pp. 289–300Google Scholar.