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IV.—Archæastacus (Eryon) Willemœsii, a New Genus and Species of Eryonidæ1

Published online by Cambridge University Press:  01 May 2009

C. Spence Bate
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Extract

The several species of Eryon, described by various authors, appear to be distinguishable as separate genera, which are as definable from one another as from the recent forms of Polycheles and Willemœsia; but the variability appears not to be greater than in those that are separated in time through geological æons, than in those that are contemporaneous in geographical space.

Type
Original Articles
Information
Geological Magazine , Volume 1 , Issue 7 , July 1884 , pp. 307 - 310
Copyright
Copyright © Cambridge University Press 1884

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References

page 307 note 1 Read before Section C, British Association, at Southport, 1883.

page 307 note 2 Mr. Spence Bate had most obligingly sent up to the Editor a pencil drawing, being a restoration of Mr. Lee's fossil, for the Artist to copy; but as Mr. Lee subsequently kindly allowed the original specimen to be drawn, it was deemed advisable to reproduce the actual fossil without additions from recent specimens.—Edit.

page 309 note 1 The Artist has since succeeded in making out distinctly the three short basal joints of the second pair of antennae.—Edit.

page 309 note 2 The Artist has indicated a division in the broad outer plate on the right side, probably not clearly seen when the above description was penned by the author.—Edit.