446 
THE GEOLOGIST. 
Mr. W. Ferguson, F.Q-.S., noticed the occurrence of chalk-flints 
and greensand in Aberdeenshire, Proc. Glasgow Phil. Soc. iii. p. 33, 
1849, and in the Phil. Mag., May, 1850. Mr. Salter subsequently 
referred to the same subject in the twelfth volume of the Quarterly 
Journal of the Geol. Soc. p. 390, 1856, and in the same work for 
1857 ; and we find that the following four species are recorded as 
having been found in Scotland : — Crania sti^iata, Kingena limUy 
Mh. Mantelliana, Bh. comj^ressa. I have not however been able to 
examine specimens of these species. Having communicated with 
Professor JN^icol upon the subject, he kindly forwarded for my in- 
spection specimens of four others, which had been found by Mr. 
Murray, of Aberdeen, viz. : — 
1. Terebratulina caenea. Sow., pi. xxiv.^y. 14. 
luternal flint-casts in flint nodnles, from Curden, Aberdeenshire. 
2. Terebratulina striata, Wahlenh., pi. xxiv.Jig. 15. 
Also in flint-casts, same locality. 
3. Ehtnchonella plicatilis and E. octoplicata, Sow., pi. 
f qs. 16, 17, from the same locality. 
There were also some one or two other forms, which were not sufficiently well pre- 
served to admit of a correct determination. One of these belongs probably to Eh. Cu- 
fieri. 
4. Ehtnchonella . . . ."^ pi. xxiv.Jlg. IS. 
I could not determine this Hkz/nchonel/a vrhich had been found by 'Mr. R. Dawson, 
in Upper Greensand, at Curden, Aberdeenshire. Professor Nicol informs me that the 
Greensand fossils are mostly found- in the state of casts, and not often preserved well 
enough to admit of a coi'rect determination. 
III. TERTIARY BRACHIOPODA. 
Erachiopoda do not a])pear to have been specifically as numerous 
during the Tertiary period as they were in the older formations, and 
it has been observed that the species of the first-named period are in 
many instances specifically identical with those still in existence. 
Three or four years ago, Mr. Etheridge gave me a Terebratula he 
had received from the i&land of Malta, assuring me at the same time 
that it had been obtained from Miocene or Pliocene deposits of that 
island. This shell struck me at the time as very remarkable, and 
this impression was subsequently concurred in by Professor Suess, to 
whom 1 showed it when he was last in England ; I may also mention 
that while looking at some Tertiary fossils from Victoria, at the In- 
ternational Exhibition, I observed a Pliocene Terebratula, which, if 
not specifically identical with the Maltese species, is at any rate a 
very nearly related form. 
Waldheimia Garibaldia^^a, Dav. n. sp. pi. xxiY.Jig. 19. 
Shell somewhat obscurely pentagonal. Ventral valve convex and rather deep, divided 
into three portions by two diverging ridges or ribs, which commence close to the extre- 
mity of the beak, and extend to the front, leaving between them a slightly concave or 
flattened space, in which three or four longitudinal ribs are observable. The lateral por- 
tions of the valve become gradually and gently concave as they approach the margin, and 
