PLATE XLVII. 



CARBONIFEROUS SPECIES. 



Fig. 



1 . Chonetes Buchiana, De Koninck. From the Carboniferous limestone of Settle, 



in Yorkshire. 



2. „ „ Variety with strong ribs, from the Carboniferous shales 



of Malham Moor. 



3. ,, „ From Gare, Lanarkshire, Scotland. 3 b,c,d Enlarged. 



4. „ ,, A very large and transverse example. Rutcheugh, Nor- 



thumberland. 



5. (>. „ „ Interior of the ventral and dorsal valves, enlarged, from 



specimens found at Malham Moor by Mr. Burrow. 



1 ■ ., „ var. interstriata. From the Carboniferous limestone of 



Settle, discovered by Mr. Burrow. 7" Enlarged. 



s - „ polita, M'Coy. From the Carboniferous shales of Craigenglen, 



Stirlingshire, in Scotland, and collection of 

 Mr. J. Young. 8 *•' Enlarged. 



9. .. „ Another example, from the same locality. 



10. .. „ Prof. M'Coy's original figure. 



11. ., „ Interior of the dorsal valve, from the Craigenglen beds, Stir- 



lingshire, Scotland. 



12. „ llardrensis, Phillips. A typical example, from the Carboniferous 



shales of East Barns, near Dunbar, in 

 Scotland. 12' Half of one of the valves, 

 carefully enlarged. 



13. „ ,, A more coarsely striated variety, from Settle, in Yorkshire. 



14. ,, „ Interior of the dorsal valve, enlarged, from the Carboni- 



ferous shales of Calderside, Lanarkshire, Scotland, and 

 collection of Mr. J. Thomson. 



15. „ „ Interior of the ventral valve, enlarged, from Capelrig, in 



Lanarkshire. 



16. „ ,, Interior of the dorsal valve, corresponding to fig. 15. 



Same locality, and collection of Mr. J. Armstrong. 



17. ,, ,, A young specimen, from Craigie, near Kilmarnock. Col- 



lection of Mr. J. Thomson. W Enlarged. 



18. „ „ A small specimen, from Settle. 18 a - Enlarged. 



19. ,, „ var. laguessiana, DeKoninek? From the Carboniferous 



shales of Newton-on-the-More, Northumberland. 19" 

 Enlarged. 



