330 PEOCEEDINGS or THE GEOLOGICAL SOCIETY. [Juiie 19, 



Heterophyllice. 

 Lithostrotion junceum. 

 fasciculatum. 



Syringopora ramulosa. 

 Clisiophyllum, several species. 

 Cyathophyllum, several species. 



Spirifer lineatus. 

 Athyris Roysii. 



ambigua. 



Rhynchonella pleurodon. 

 Terebratula hastata. 



And the following Brachiopoda : — 

 Productus semireticulatus. 



longispinus. 



punctatus. 



fimbriatus. 



Spirifer bisulcatus. 

 glaber. 



The coralliferous beds are a few feet above the lowest limestone 

 beds of the Carboniferous series. At Brockley the corals occur in 

 an arenaceous shale overlying the lowest beds of limestone. At 

 Dunlop they are found in a calcareous band of shale intercalated 

 between the thin beds which overlie the lowest bed. At Bathgate, 

 where they abound, and where their perfection of preservation is 

 remarkable, they are not only found in the intercalated shales, or 

 partings of the thin beds so characteristic of this part of the Scottish 

 Carboniferous series, but also in a limestone, 2 feet thick, which 

 overlies the main or under bed. 



The perfection of most of the details of the Bathgate specimens 

 would indicate that they had not been rolled, but had been en- 

 tombed where they grew — ^in deep water, with the Brachiopoda. 



EXPLANATION OF PLATE XIII. 



Figs. 1-3. Cyclo'phyllum JBowerhanJci, Edwards and Haime, sp. : — 1. Calice, 

 natural size ; 2. Central mass, natural size ; 3. Columella, magnified. 



Figs. 4-8. Cyclophyllum fungites, Fleming, sp, : — 4. Central mass, natural size ; 

 5. The base, natural size ; 6. Transverse section, magnified ; 7. Longi- 

 tudinal section, magnified ; 8. Transverse section of septa showing the 

 epitheca, highly magnified. 



Fig. 9. Aulo'phyllum Edwardsi, Duncan and Thomson, longitudinal section, 

 magnified. 



2. On the Discovery of a New Ptjlmoi^ate Molltjsk [Zonites 

 (Conulus*) prisons, Cpr.y] in the Coal-formation of Nova 

 Scotia. By J. W. Dawsoi^, LL.D., F.E.S., F.G.S. With a 

 Description^ of the Species ; hy Philip P. Carpenter, M.D. 



The little shell to which the following description refers was found 

 last summer in the course of excavations made under my direction 

 in the bed in Subdivision YIII. of the Joggins Section, between coals 

 no. 37 and no. 38 of Logan's sectional list, already referred to in pre- 

 vious papers f as containing great numbers of shells of Pupa vetusta. 

 This bed is 1217 feet below that in which Pupa vetusta was origin- 

 ally discovered in trunks of erect Sigillariae, and about 42 feet below 



* Conulus, Fitz., 1833 { = Trockiscus, Held., 1837, non Sly. ; =Petasia, Beck, 

 1837;= Perforatella, Schliit.), is a subgenus of Zonites, Montf. (non Leach, 

 Gray), according to Messrs. Adams, ' Grenera of Recent Shells,' vol. ii. p. 116, and 

 their follower Chenu, ' Manual de Conch, et de Paleont.', vol. i. p. 422. Those 

 who do not care to enter into the modern divisions of the land-shells, may quote 

 the species as a Zonites — or even, speaking loosely, as a Helix. 



t Quart. Jourii. Geol. Soc, Feb. 1862, and May 1866, p. 121. 



