Abstract
The Scottish specimens described in this memoir are all the property of Mrs Robert Gray, and I am exceedingly indebted to her, not only for entrusting them to me for description, but for allowing them to remain in my hands for a lengthy period. None of the collections of the Geological Survey, nor those of Glasgow University, contain any cystids from Girvan. Besides her Cystidea, Mrs Gray has submitted to me her Crinoidea and several interesting specimens of Edrioasteroidea.

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