In a recent note Mr. J. Wilfrid Jackson, F.G.S., and the writer mentioned the occurrence at Cauldon, Staffordshire, at highly fossiliferous limestones, resembling those of the “Brachiopodbeds” of Castleton, Park Hill, Narrowdale, Thorpe Cloud, and other stations on the north-west, west, and south-west of the Staffordshire- Derbyshire limestone massif. It will perhaps be of interest to put on record the fauna of these beds, as far as it has yet been worked out, since the conditions under which they occur renders it highly improbable that any considerable amount of material will ever be available from them, and since they represent a phase which does not, so far as is known at present, occur to any extent in the more immediate neighbourhood of this station.