PLATE XXX. 



Fig. 1. — Edmondia primseva. A fine example of the right valve. From 

 Doohybeg, co. Limerick. In the Collection of the Geological Survey of Dublin. 

 (Page 306.) 



Fig. 2. — Edmondia primaeva. The type of M'Coy's Lutraria prisca. Preserved 

 in the Griffith Collection of the Museum of Science and Art, Dublin. (Page 

 306.) 



Fig. 3. — Edmondia primxva. A large specimen (fragment), viewed from 

 above, showing the umbo and dorsal edge of the valve. From Doohybeg, co. 

 Limerick. In the Collection of the Geological Survey of Ireland. (Page 306.) 



Fig. 4. — Edmondia gigantea. A fine specimen. From Little Island, co. Cork. 

 In the Collection of Mr. J. Wright, of Belfast. (Page 308.) 



Fig. 4 a. — Edmondia gigantea. The same specimen viewed from above. 



