50 Mr. R. Howse on the Permian System of the 



not the slightest knowledge of the shell when I first showed it 

 to him, and to whom I presented a fine series of Dalton speci- 

 mens afterwards, that he might be able to illustrate the species 

 in his ' Monograph/ 



The general form of this species is now, through the figures 

 of Geinitz and King, pretty well known, and the interiors have 

 lately been very accurately represented by Mr. Davidson in his 

 work on the Permian Brachiopoda, pi. 2. figs. 38-40. 



Though a rare species generally, numerous examples are occa- 

 sionally found in a very limited space. It is the common asso- 

 ciate of P, latirostratus, both at Dalton-le-dale and Tunstall, 

 where numerous examples have been taken by Mr. Kirkby and 

 myself. 



8. Camarophoria Schlotheimi, v. Buch. — It is very pro- 

 bable that some specimens figured by Verneuil in the ' Geol. 

 Russ.^ under a distinct name, Terebratula superstes, belong to the 

 present species ; but as I have not seen specimens of that species, 

 I cannot settle this point. Mr. King thinks that some specimens 

 figured by Geinitz under this name, ' Verst.' pi. 4. figs. 48, 49, 

 belong to another species, but the figures referred to are only 

 more plaited than usual. Similar specimens occur occasionally 

 at Dalton, which Mr. King is inclined to refer also to our 

 C. Humbletonensis ; but I can say with confidence that this last 

 species never occurs in that locality. 



This most characteristic Brachiopod occurs rather plentifully 

 in the shell-limestone of this district, and very sparingly in the 

 compact limestone. 



9. Camarophoria globulina, Phill. — This is a very distinct 

 species, though some authors only partially acquainted with it 

 have united it with the preceding. 



Its spherical form, biplicated sinus, and the comparative 

 smallness of the size it attains to, would be sufiicient alone to 

 separate it from all other Permian species; but in addition to 

 these external characters, the apophysary system is also slightly 

 modified, and it retains its specific appearance in all the nume- 

 rous localities in which it occurs. 



Baron Schauroth has lately figured a German example of it, 

 which he refers to the preceding species. In the ' Versteine- 

 rungen,^ pi. 4. figs. 51, 52, Geinitz refers some examples to the 

 Terebratula superstes, de Vern., which belong apparently to this 

 species. 



It occurs in the compact- and shell-limestone, sometimes very 

 plentifully. 



10. Camarophoria Humbletonensis, Howse. PI. IV. figs. 

 3,4. 



"Shell subtriqonal or obovate ; perforated valve with a broad 



