504 E. ETHEEIDGE ON ADHEEENT CAEBONIFEEOUS PEODTJCTID^E. 



with the spines as represented by Keyserling in Chonetes ? comoides, 

 Sow.*, or by Hall in C. scitulaf. 



Locality and Horizon. — Fig. 1, Auchenmade Quarry, near Dairy, 

 Ayrshire ; Carboniferous Limestone ; collected by, and in the cabinet 

 of, Mr. J. Smith. Pigs. 2 & 3, Scremerston Quarry, near Berwick ; 

 Carboniferous Limestone Shale. Fig. 4, shale below the second 

 limestone (probably the equivalent of the No. 1 Limestone of Mid- 

 Lothian) on the shore of the Firth of Forth, near Kinghorn, Fife, L. 

 Carb. Limestone group. Collected by Mr. James Bennie. 



Discussion. 



Mr. Hicks remarked that the range in time of some species of 

 Brachiopoda was very great, and deprecated the creation of new 

 species in this group, except when such a course was shown to be 

 absolutely necessary. 



Mr. Etheeidge said that Chonetes hardrensis seemed to be quite 

 distinguishable from G. Laguessiana, and to characterize a distinct 

 geological horizon. He quite agreed with Mr. Hicks in his objec- 

 tions to the creation of new species when there was no real dis- 

 tinction. 



* Reise in das Petschora-Land im Jahre 1 843, t. 6. f . 1 c. 

 t Pal. N. York, iv. t. 22. f. 11. 



