443 
PAL.EONTOLOGICAL NOTES. 
Bt Thomas Dayidson, Esq., E.K.S., E.G.S. 
I. ON SCOTTISH JURASSIC BRACHIOPODA. 
So little is known of Scottish Jurassic Brachiopoda, that any addi- 
tional information cannot fail to prove interesting. Professor Nicol 
■wrote me on the 16th of April, 186i', that out of a pretty large collec- 
tion of the fossils of this period sent up to the Aberdeen meeting of 
the British Association, he found only t\Yo species and specimens of 
Brachiopoda, and both imperfect. That in Sunderland they are most 
common in the Dunrobin Eeefs (bv 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 tlie sandstone 
at Braambury Hill, are casts of a large shell, like Terehratula per- 
ovalis, but often crushed and distorted. 
In 1850, the late A. Kobertson, of Elgin, sent me two beautifully 
preserved Rht/nclionellce {B. 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. numis- 
vialis, from the Lias of Shendwick, and another of Rliynchonella 
Bouchardii, from the Lias of Cromarty. Mr. Geikie recorded like- 
wise a Bhynchonella tetrahedra, from the Middle Lias of the island 
of Pabba. 
It would result from the above statement, that about six species of 
Brachiopoda have, up to the present period, been mentioned as 
having been found in Scottish Jurassic strata. 
On the 9th of April, 1860, Captain E. J. Bedford, E.JS"., informed 
me that while surveying the island of Mull, he discovered a great 
number of fossils in the Middle Lias of Caisaig Bay ; these he kindly 
forwarded for my examination, and I found among many other Mol- 
lusca, eight or nine species of Brachiopoda, two of which being new 
to Scotland, and one even so to Oreat Britain. 
I was informed, at the same time, that these fossils had been all cut 
out of a hardened kind of black clay, uncovered at low water ; that 
this clay lay in laminae, which he lifted up with a little bar, and in 
which he found all the specimens sent up, with the exception of 
Terehratula punctata and some other species of Mollusca, which he 
obtained from hard masses of limestone scattered about the shore. 
The following is a list of the Mollusca from the Middle Lias of 
the island of Mull, which Mr. Etheridge and myself were able to 
determine : — 
Terebratula punctata, Khynchonella riraosa. 
Waldheiinia numismalis. Rhyuchouella variabiKs. 
Spiriferiiia rostrata. Khynchonella (another species?). 
Sj)iriferina ^Yalcotti. Ostrea ? 
Spiriferina oxyptcra. Avicula insequivalvis. 
Khynchonella tetrahedra. Modiola Hillana. 
