446 



THE GEOLOGIST. 



Mr. W. Ferguson, F.G.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 striata, Kingena lima, 

 Bh. Mantelliana, Bh. compressa. I have not however been able to 

 examine specimens of these species. Having communicated with 

 Professor Nicol 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. TeREBRATULHSTA CAEiSEA, SoW., pi. XXlY.^ff. 14. 

 Internal flint-casts in flint nodnles, from Cnrden, Aberdeenshire. 



2. Terebratulina striata, Wahlenl., pi. xxiv.Jig. 15. 

 Also in flint-casts, same locality. 



3. Eht>^chonella PLicATiLis and R. octoplicata, Sow., pi. 

 -figs. 16, 17, from the same locality. 



There were also some cne or two other forms, which were not suflBciently well pre- 

 served to admit of a correct determination. Que of these belongs probably to Rh. Cu- 

 vieri. 



4. Ehtnciionella . . . ."^ pi. xxiv.Jlg. 18. 



I could not determine this Wiynchonella which 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 correct determination, 



III. TERTIARY BRACHIOPODA. 



Brachiopoda do not appear 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 island 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 I 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 Garibaldiana, J)av. n, sp. pi. xx\\.Jlg. 19. 



Shell somewhat obscurely pentagonal. Ventral valve convex and rather deep, divided 

 ink) 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 

 flntlcnrd 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 



