PLATE XXIX. 



Tig. 1. — Edmondia oblonga. A left valve. From the Carboniferous Limestone 

 of Lowick. In the Woodwardian Museum, Cambridge. (Page 298.) 



Fig. 2. — Edmondia oblonga. The cast of a perfect specimen, showing the 

 adductor muscle-scars and pallial line. Same locality and Collection. (Page 

 298.) 



Fig. 3. — Edmondia oblonga. A full-grown example of the right valve. Same 

 locality and Collection. (Page 298.) 



Fig. 4. — Edmondia Lyellii. The cast of both valves. From the Lower Lime- 

 stone series of Beith. My Collection. (Page 300.) 



Fig. 5. — Edmondia oblonga. The type of Portlock's Sanguinolaria oblonga. 

 From co. Tyrone. Preserved in the Museum of the Geological Survey, Jermyn 

 Street. (Page 298.) 



Fig. 6. — Edmondia primseua. The cast of a left valve. From Doohybeg. 

 In the collection of the Geological Survey of Ireland. (Page 306.) 



Fig. 7. — Edmondia primseva. A right valve with portions of the test pre- 

 served. Same locality. My Collection. (Page 306.) 



Fig. 8. — Edmondia primseva. A large left valve. Same locality. My Collec- 

 tion. (Page 306.) 



