So little is known of Scottish Jurassic Brachiopoda, that any additional information cannot fail to prove interesting. Professor Nicol wrote me on the 16th of April, 1860, that out of a pretty large collection of the fossils of this period sent up to the Aberdeen meeting of the British Association, he found only two species and specimens of Brachiopoda, and both imperfect. That in Sunderland they are most common in the Dunrobin Reefs (by some thought to be Oxford clay, by others Lias), but that the stone is so friable, that the specimens fall to pieces almost at the slightest touch; and that in the sandstone at Braambury Hill, are casts of a large shell, like Terebratula perovalis, but often crushed and distorted.

In 1850, the late A. Bobertson, of Elgin, sent me two beautifully preserved Rhynchonellæ (R. lacunosa?), from Dunrobin, and which will be found figured and described in my monograph; and about the same period, the late Hugh Miller sent me a specimen of T. numismalis, from the Lias of Shendwick, and another of Rhynchonella Bouchardii, from the Lias of Cromarty. Mr. Geikie recorded likewise a Rhynchonella tetrahedra, from the Middle Lias of the island of Pabba.