EXPLANATION OF PLATE 14 

 All figures approximately natural size. 

 Fig. 1. Mytilus kewi No inland. Occurrence, in lower Etehegoin and Santa 

 Margarita. 



Fig. 2a. Amiantis communis, n. sp. Left valve; type specimen no. 11311; 

 U. C. locality 2276; Santa Margarita. 



Fig. 2b. Amiantis communis, n. sp. View showing lunule and escutcheon of 

 same specimen as figure 2a. 



Fig. 2c. Amiantis communis, n. sp. Interior view of right valve ; from locality 

 2276. 



Fig. 2c?. Amiantis communis, n. sp. Interior view of left valve ; locality 2276. 



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