PLATE XXXII. 



Fig. 1. — Edmondia rudis. A medium-sized left valve. From the upper beds 

 of the Carboniferous Limestone of Castleton, Derbyshire. My Collection. (Page 

 302.) 



Fig. 2. — Edmondia unioniformis. A left valve, with more strongly-marked 

 ridges of growth than usual. Same locality. My Collection. (Page 291.) 



Fig. 3. — Edmondia rudis. The cast of a left valve. From the Shelly Lime- 

 stone of Poolvash, Isle of Mau. My Collection. (Page 302.) 



Fig. 4. — Edmondia rudis. The cast of a right valve, of deeper dimensions 

 than is usually found. From the upper beds of the Carboniferous Limestone of 

 Castleton, Derbyshire. My Collection. (Page 302.) 



Fig. 5. — Edmondia rudis. A less rugose form, incomplete at the posterior 

 part of the hinge-line. Same locality. My Collection. (Page 302.) 



Fig. 6. — Edmondia rudis. A large example, with more regular markings, 

 having the contour of Corbula ? senilis of Phillips. Same locality. My Collection. 

 (Page 302.) 



Fig. 7. — Edmondia Goldfussi. — A left valve, chiefly a cast of the interior. 

 From the upper beds of the Carboniferous Limestone, Thorpe Cloud, Derbyshire. 

 My Collection. (Page 309.) 



Fig. 8. — Edmondia Goldfussi. The cast of a left valve. From the upper beds 

 of the Carboniferous Limestone of Castleton, Derbyshire. My Collection. (Page 

 309.) 



Figs. 9, 10. — Edmondia Goldfussi. A left and right valve respectively, with 

 portions of the test preserved. Same locality. My Collection. (Page 309.) 



Fig. 11. — Edmondia Goldfussi. The cast of a left valve. Same locality. My 

 Collection. (Page 309.) 



Fig. 12. — Edmondia transversa. A right valve. From the shales below the 

 limestone of Hind Og Glen, Dairy, Ayrshire. My Collection. (Page 317.) 



Fig. 13. — Edmondia transversa. The left valve of a bivalve example. From 

 the Lower Limestone series of Auchenskeith, Ayrshire. My Collection. (Page 

 317.) 



Fig. 14. — Edmondia transversa. A bivalve example. From the same horizon 

 at Beith, Ayrshire. My Collection. (Page 317.) 



Fig. 15. — Edmondia transversa. A young example. From Garngad Road, 

 Glasgow. In the Collection of Mr. J. Neilson. (Page 317.) 



Fig. 16. — Edmondia transversa. An almost perfect cast, showing (16 a) the 

 grooves for the lamellar processes of the hinge-plate. Same locality as Fig. 14. 

 My Collection. (Page 317.) 



