Forami'itifera of Gothland. 3()3 



llie soutl), so that the liinestono of Ilobui-jren — tlio extreme 

 soiitliciM part — i.s on a hi^lier horizon than that of the rest 

 of the island, and the nuijoriiy that tlic sandstone simply 

 occupies so much of the space taken up by the shale in ihe 

 tiorth. As opinions are not evidence, the proof, one way or 

 the other, will not be obtained till a bore is put down on the 

 Hobiirg shore. 



'I'he Foraininifera recorded in this paper were obtained, 

 one species from the lower part of the limestone, and the rest 

 from the shales towards their upper part. 



Horizons. 



The Gotliljind strata raiif^e from the Monoffraptus-ah'AiiS 

 (under the Llandovery) to the Dowutonian (above the 

 Ludlow *). 



The species got in the litnestone may be referred to the 

 A\ mestry, and the rest to the V\'enlock liorizon of England. 



FOKAMINIFERA (REMARKS ON THE SpECIES). 



All the specimens figured are from plump and solid indi- 

 viduals, none from cut sections of the rock, and, uirless 

 otherwise stated, are enlarged 40 diameters-. 



To i\lr. .losejjli Wright, i\G.»S., of Belfast, who has devoted 

 a large part of his lifetime to the study of the Foraminifera, 

 I am indebted for i)iluting me through this labyrinth of 

 small things. I make this early reference to him, as I will 

 have frequently to bring in his name in connection with 

 some of the species. I am also indebted to him for many of 

 the references. 



IJyperammina var/ans, Brady. 

 Girvanella p-oblematica, N. & E. 



At the time (1878) Nicholson and Ederidge published 

 tlieir first fasciculus of the Girvan fossils, they gave an excerpt 

 of a letter from Brady, this letter pointing out that G. proble- 

 viatica resembled //. varans, a present-day species, and this 

 has been sustained l)y later investigators. ^^ Girvanella^^ is 

 common in G(^thland, so much so that two series of strata 

 have been called "(z<rt;a/<e//<:/-zones." This fossil has, how- 

 ever, to be nvostly determined from cut bits of tho rock; but 

 from the shales I got a number of specimens showing the 



* Dr. Munthe'a Memoir on the Strata of Southern GotLlaud (ir 

 EnnrHsh). 



