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Notes on the Fauna of the Lower Devonian Beds of Torquay

Published online by Cambridge University Press:  01 May 2009

F. R. Cowper Reed
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Extract

The diagnosis of this species given by Dr. Woodward in 1881 may be summarized as follows: Body with little or no signs of trilobation. Glabella oblong, with three pairs of lateral spines and three median spines, the anterior one apparently double. No evidence of cheek-spines. Eyes nearer genal border than in H. armatus, and rostrum more prominently developed. Thorax composed of thirteen segments with broadly expanded pleuræ; each axial ring with pair of widely separated spines. Pygidium imperfectly known. Total length of type-specimen 8 inches; breadth (measured along curve of thorax at widest part) 3¾ inches. Spines on thorax about 1 inch apart.

Type
Original Articles
Information
Geological Magazine , Volume 57 , Issue 8 , August 1920 , pp. 341 - 347
Copyright
Copyright © Cambridge University Press 1920

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References

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page 343 note 1 Koch, , op. cit., t. i, figs. 3, 3a.Google Scholar

page 343 note 2 Reed, , Geol. Mag., 1918, pp. 314, 324, 325.CrossRefGoogle Scholar

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