215 



EXPLANATION OF PLATE 8 

 Figure Page 



43. Lithophag-a bisulcata (d'Orbigny) 55 



44. Lithophag'a aristata (Dillwyn) 55 



45. Modiolaria lateralis (Say) 55 



46. Perlploma inaequivalve Schumacher 56 



47. Pandora trillneata Say 56 



Fig. a. Interior view. Fig. b. Exterior view. 



