' 



CKOLOGICAL LOOALITIKS. W 



c. Unterer Zeclixteui. Loioer Magnesimi Limestone. 



III. Zechstein, next under the forego- Compact limestone. 



ing and overlying the bituminous 

 Mergelschiefer. 



IV. Kupferschiefer. M.irl-slate. 



V. AVeissliegendes. Not represented in England. 



Prof. Wm. King places the magncsian limestone of Tullyconnel, Co. Tyrone, 

 Ireland, in the uppermost portion of the series. 



Of these divisions the beds yielding Foraminifera are confined in England to Nos. I, 

 II, and III, in Ireland to No. I, and in Germany to II, III, and IV. 



My work in respect to the Permian species of Foraminifera has lain rather in the 

 examination and comparison of specimens from localities already well known, the 

 embodiment of information contained in many scattered papers, and the revision of the 

 nomenclature of the group, than in the investigation of material from unsearched ground. 

 To Dr. R. Richter, of Saalfeld, I am indebted for much assistance in this portion of the 

 subject. Not only has he supplied me liberally with material from the Thuringian beds 

 and with specimens from his own collection, but has further facilitated the determination 

 of doubtful species by furnishing accurate drawings of well-marked examples, some of 

 which are now reproduced as illustrations. Dr. Richter has also communicated the 

 details from which the table of distribution, so far as it concerns the Thuringian species, 

 has been drawn up. 



Mv thanks are also due to Mr. J. W. Kirkby, whose labours in connection with the 

 fossil microzoa of the English Permian beds are widely known and as widely valued, for 

 the loan of specimens and for much exact information as to localities. 



In the following list, both English and German localities have been numbered 

 in groups rather than individually, the species being few in comparison to the number of 

 stations at which they have been observed. 



ENGLAND. 



Lower ^fagnesian Limestone. 



143. Durham including 



Hartley's Quarry, Millfield, Sunderland. 

 Pallion, a mile and a half west of Sunderland. 

 Westoe, near South Shields. 

 Offerton, three miles west of Sunderland. 



