EXPLANATION OF PLATE 31 

 Fig. 1. Gastroehaena, sp. No. 12282, loc. 2179. 



Fig. 2. Meretrix nitula (Gabb) var. major, n. var. X 1. Left valve of type 

 no. 12279, loc. 2169. 



Fig. 3. Spondylus rugosus, n. sp. X 1. Right valve of type no. 12277, loc. 2143. 

 Fig. 4. Cardium (Protoeardia), sp. X 1%. No. 12283, loc. 2177. 

 Fig. 5. Anatina (?), sp. X 1%. No. 12286, loc. 2162. 



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